1680931374 has 8 divisors (see below), whose sum is σ = 3361862760. Its totient is φ = 560310456.

The previous prime is 1680931367. The next prime is 1680931381. The reversal of 1680931374 is 4731390861.

It is an interprime number because it is at equal distance from previous prime (1680931367) and next prime (1680931381).

It is a sphenic number, since it is the product of 3 distinct primes.

1680931374 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140077609 + ... + 140077620.

It is an arithmetic number, because the mean of its divisors is an integer number (420232845).

Almost surely, 2^1680931374 is an apocalyptic number.

1680931374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1680931374 is a wasteful number, since it uses less digits than its factorization.

1680931374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280155234.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 1680931374 is about 40999.1630890193. The cubic root of 1680931374 is about 1189.0040330782.

The spelling of 1680931374 in words is "one billion, six hundred eighty million, nine hundred thirty-one thousand, three hundred seventy-four".