1678743360 has 448 divisors, whose sum is σ = 6943587840. Its totient is φ = 373800960.

The previous prime is 1678743323. The next prime is 1678743373. The reversal of 1678743360 is 633478761.

It is a tau number, because it is divible by the number of its divisors (448).

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

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 2479342 + ... + 2480018.

It is an arithmetic number, because the mean of its divisors is an integer number (15499080).

Almost surely, 2^1678743360 is an apocalyptic number.

1678743360 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 1678743360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3471793920).

1678743360 is an abundant number, since it is smaller than the sum of its proper divisors (5264844480).

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

1678743360 is a wasteful number, since it uses less digits than its factorization.

1678743360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 45.

The square root of 1678743360 is about 40972.4707578149. The cubic root of 1678743360 is about 1188.4879130439.

The spelling of 1678743360 in words is "one billion, six hundred seventy-eight million, seven hundred forty-three thousand, three hundred sixty".