1694731312 has 20 divisors (see below), whose sum is σ = 3389463616. Its totient is φ = 820031040.

The previous prime is 1694731289. The next prime is 1694731321. The reversal of 1694731312 is 2131374961.

1694731312 is an admirable number.

It is a super-2 number, since 2×1694731312² = 5744228439746482688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1707903 + ... + 1708894.

Almost surely, 2^1694731312 is an apocalyptic number.

It is an amenable number.

1694731312 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.

1694731312 is a wasteful number, since it uses less digits than its factorization.

1694731312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3416836 (or 3416830 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 1694731312 is about 41167.1144483069. The cubic root of 1694731312 is about 1192.2489570537.

The spelling of 1694731312 in words is "one billion, six hundred ninety-four million, seven hundred thirty-one thousand, three hundred twelve".