486397440 has 320 divisors, whose sum is σ = 1791313920. Its totient is φ = 124968960.

The previous prime is 486397403. The next prime is 486397441. The reversal of 486397440 is 44793684.

486397440 is a `hidden beast` number, since 4 + 8 + 639 + 7 + 4 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (320).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (486397441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2142607 + ... + 2142833.

It is an arithmetic number, because the mean of its divisors is an integer number (5597856).

Almost surely, 2^486397440 is an apocalyptic number.

486397440 is a gapful number since it is divisible by the number (40) 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 486397440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895656960).

486397440 is an abundant number, since it is smaller than the sum of its proper divisors (1304916480).

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

486397440 is a wasteful number, since it uses less digits than its factorization.

486397440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 486397440 is about 22054.4199651680. The cubic root of 486397440 is about 786.4366782749.

The spelling of 486397440 in words is "four hundred eighty-six million, three hundred ninety-seven thousand, four hundred forty".