1463408640 has 384 divisors, whose sum is σ = 5346432000. Its totient is φ = 379551744.

The previous prime is 1463408623. The next prime is 1463408641. The reversal of 1463408640 is 468043641.

1463408640 is a `hidden beast` number, since 1 + 4 + 6 + 3 + 4 + 0 + 8 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1463408595 and 1463408604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1463408641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18524121 + ... + 18524199.

It is an arithmetic number, because the mean of its divisors is an integer number (13923000).

Almost surely, 2^1463408640 is an apocalyptic number.

1463408640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1463408640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2673216000).

1463408640 is an abundant number, since it is smaller than the sum of its proper divisors (3883023360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1463408640 is an equidigital number, since it uses as much as digits as its factorization.

1463408640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 1463408640 is about 38254.5244382936. The cubic root of 1463408640 is about 1135.3293667854.

The spelling of 1463408640 in words is "one billion, four hundred sixty-three million, four hundred eight thousand, six hundred forty".