38031894 has 24 divisors (see below), whose sum is σ = 82653480. Its totient is φ = 12638688.

The previous prime is 38031859. The next prime is 38031911. The reversal of 38031894 is 49813083.

38031894 = 3082² + 3083² + ... + 3085².

It is a super-2 number, since 2×38031894² = 2892849922454472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3202 + ... + 9290.

It is an arithmetic number, because the mean of its divisors is an integer number (3443895).

Almost surely, 2^38031894 is an apocalyptic number.

38031894 is an abundant number, since it is smaller than the sum of its proper divisors (44621586).

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

38031894 is a wasteful number, since it uses less digits than its factorization.

38031894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444 (or 6441 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 38031894 is about 6167.0004053835. Note that the first 3 decimals coincide. The cubic root of 38031894 is about 336.2915730120.

The spelling of 38031894 in words is "thirty-eight million, thirty-one thousand, eight hundred ninety-four".