38155980 has 48 divisors (see below), whose sum is σ = 107341920. Its totient is φ = 10126848.

The previous prime is 38155979. The next prime is 38156003. The reversal of 38155980 is 8955183.

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, 12352 + ... + 15128.

It is an arithmetic number, because the mean of its divisors is an integer number (2236290).

Almost surely, 2^38155980 is an apocalyptic number.

38155980 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38155980 is an abundant number, since it is smaller than the sum of its proper divisors (69185940).

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

38155980 is a wasteful number, since it uses less digits than its factorization.

38155980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3018 (or 3016 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 38155980 is about 6177.0526952585. The cubic root of 38155980 is about 336.6569135276.

The spelling of 38155980 in words is "thirty-eight million, one hundred fifty-five thousand, nine hundred eighty".