680442354 has 12 divisors (see below), whose sum is σ = 1474291806. Its totient is φ = 226814112.

The previous prime is 680442331. The next prime is 680442361. The reversal of 680442354 is 453244086.

It can be written as a sum of positive squares in only one way, i.e., 680427225 + 15129 = 26085^2 + 123^2 .

It is a super-2 number, since 2×680442354² = 926003594234122632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18901159 + ... + 18901194.

Almost surely, 2^680442354 is an apocalyptic number.

680442354 is an abundant number, since it is smaller than the sum of its proper divisors (793849452).

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

680442354 is a wasteful number, since it uses less digits than its factorization.

680442354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37802361 (or 37802358 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The square root of 680442354 is about 26085.2899926376. The cubic root of 680442354 is about 879.5565749807.

The spelling of 680442354 in words is "six hundred eighty million, four hundred forty-two thousand, three hundred fifty-four".