38628840 has 64 divisors (see below), whose sum is σ = 116300160. Its totient is φ = 10264320.

The previous prime is 38628829. The next prime is 38628857. The reversal of 38628840 is 4882683.

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, 58110 + ... + 58770.

It is an arithmetic number, because the mean of its divisors is an integer number (1817190).

Almost surely, 2^38628840 is an apocalyptic number.

38628840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38628840 is an abundant number, since it is smaller than the sum of its proper divisors (77671320).

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

38628840 is a wasteful number, since it uses less digits than its factorization.

38628840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 38628840 is about 6215.2103745569. The cubic root of 38628840 is about 338.0419167697.

The spelling of 38628840 in words is "thirty-eight million, six hundred twenty-eight thousand, eight hundred forty".