38149972 has 24 divisors (see below), whose sum is σ = 80789184. Its totient is φ = 15388032.

The previous prime is 38149963. The next prime is 38150011. The reversal of 38149972 is 27994183.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39598 + ... + 40549.

It is an arithmetic number, because the mean of its divisors is an integer number (3366216).

Almost surely, 2^38149972 is an apocalyptic number.

It is an amenable number.

38149972 is an abundant number, since it is smaller than the sum of its proper divisors (42639212).

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

38149972 is a wasteful number, since it uses less digits than its factorization.

38149972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80175 (or 80173 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 38149972 is about 6176.5663600418. The cubic root of 38149972 is about 336.6392427204.

The spelling of 38149972 in words is "thirty-eight million, one hundred forty-nine thousand, nine hundred seventy-two".