1694139936 has 48 divisors (see below), whose sum is σ = 4450388544. Its totient is φ = 564297984.

The previous prime is 1694139919. The next prime is 1694139949. The reversal of 1694139936 is 6399314961.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×1694139936² = 5740220245500168192, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 142410 + ... + 153846.

It is an arithmetic number, because the mean of its divisors is an integer number (92716428).

Almost surely, 2^1694139936 is an apocalyptic number.

1694139936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1694139936 is an abundant number, since it is smaller than the sum of its proper divisors (2756248608).

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

1694139936 is a wasteful number, since it uses less digits than its factorization.

1694139936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12993 (or 12985 counting only the distinct ones).

The product of its digits is 944784, while the sum is 51.

The square root of 1694139936 is about 41159.9311952778. The cubic root of 1694139936 is about 1192.1102626107.

The spelling of 1694139936 in words is "one billion, six hundred ninety-four million, one hundred thirty-nine thousand, nine hundred thirty-six".