38634280 has 16 divisors (see below), whose sum is σ = 86927220. Its totient is φ = 15453696.

The previous prime is 38634257. The next prime is 38634307. The reversal of 38634280 is 8243683.

It can be written as a sum of positive squares in 2 ways, for example, as 37724164 + 910116 = 6142^2 + 954^2 .

It is a super-2 number, since 2×38634280² = 2985215182236800, which contains 22 as substring.

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, 482889 + ... + 482968.

Almost surely, 2^38634280 is an apocalyptic number.

It is an amenable number.

38634280 is an abundant number, since it is smaller than the sum of its proper divisors (48292940).

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

38634280 is a wasteful number, since it uses less digits than its factorization.

38634280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 965868 (or 965864 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 38634280 is about 6215.6479951812. The cubic root of 38634280 is about 338.0577845489.

The spelling of 38634280 in words is "thirty-eight million, six hundred thirty-four thousand, two hundred eighty".