680331456 has 168 divisors, whose sum is σ = 2300939264. Its totient is φ = 188075520.

The previous prime is 680331437. The next prime is 680331473. The reversal of 680331456 is 654133086.

It is a tau number, because it is divible by the number of its divisors (168).

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

It is a self number, because there is not a number n which added to its sum of digits gives 680331456.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122271 + ... + 127713.

Almost surely, 2^680331456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680331456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150469632).

680331456 is an abundant number, since it is smaller than the sum of its proper divisors (1620607808).

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

680331456 is a wasteful number, since it uses less digits than its factorization.

680331456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499 (or 5486 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 680331456 is about 26083.1642252239. The cubic root of 680331456 is about 879.5087892210.

The spelling of 680331456 in words is "six hundred eighty million, three hundred thirty-one thousand, four hundred fifty-six".