38720118 has 32 divisors (see below), whose sum is σ = 82615680. Its totient is φ = 12055680.

The previous prime is 38720083. The next prime is 38720131. The reversal of 38720118 is 81102783.

It is a happy number.

It is a congruent number.

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, 12813 + ... + 15543.

It is an arithmetic number, because the mean of its divisors is an integer number (2581740).

Almost surely, 2^38720118 is an apocalyptic number.

38720118 is an abundant number, since it is smaller than the sum of its proper divisors (43895562).

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

38720118 is a wasteful number, since it uses less digits than its factorization.

38720118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2892.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 38720118 is about 6222.5491560935. The cubic root of 38720118 is about 338.3079659907.

The spelling of 38720118 in words is "thirty-eight million, seven hundred twenty thousand, one hundred eighteen".