38171968 has 28 divisors (see below), whose sum is σ = 75945492. Its totient is φ = 19036160.

The previous prime is 38171911. The next prime is 38171971. The reversal of 38171968 is 86917183.

It can be written as a sum of positive squares in 2 ways, for example, as 25725184 + 12446784 = 5072^2 + 3528^2 .

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, 42888 + ... + 43768.

It is an arithmetic number, because the mean of its divisors is an integer number (2712339).

Almost surely, 2^38171968 is an apocalyptic number.

It is an amenable number.

38171968 is a deficient number, since it is larger than the sum of its proper divisors (37773524).

38171968 is an equidigital number, since it uses as much as digits as its factorization.

38171968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 1560 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 38171968 is about 6178.3467044186. The cubic root of 38171968 is about 336.7039286056.

The spelling of 38171968 in words is "thirty-eight million, one hundred seventy-one thousand, nine hundred sixty-eight".