38872170 has 32 divisors (see below), whose sum is σ = 103659840. Its totient is φ = 10365840.

The previous prime is 38872159. The next prime is 38872199. The reversal of 38872170 is 7127883.

It is a super-2 number, since 2×38872170² = 3022091201017800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71716 + ... + 72255.

It is an arithmetic number, because the mean of its divisors is an integer number (3239370).

Almost surely, 2^38872170 is an apocalyptic number.

38872170 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38872170 is an abundant number, since it is smaller than the sum of its proper divisors (64787670).

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

38872170 is a wasteful number, since it uses less digits than its factorization.

38872170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143987 (or 143981 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 36.

The square root of 38872170 is about 6234.7550072156. The cubic root of 38872170 is about 338.7502271663.

The spelling of 38872170 in words is "thirty-eight million, eight hundred seventy-two thousand, one hundred seventy".