38506972 has 24 divisors (see below), whose sum is σ = 81545184. Its totient is φ = 15532032.

The previous prime is 38506969. The next prime is 38506981. The reversal of 38506972 is 27960583.

38506972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39973 + ... + 40924.

It is an arithmetic number, because the mean of its divisors is an integer number (3397716).

Almost surely, 2^38506972 is an apocalyptic number.

It is an amenable number.

38506972 is an abundant number, since it is smaller than the sum of its proper divisors (43038212).

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

38506972 is a wasteful number, since it uses less digits than its factorization.

38506972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80925 (or 80923 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 38506972 is about 6205.3986173331. The cubic root of 38506972 is about 337.6860523322.

The spelling of 38506972 in words is "thirty-eight million, five hundred six thousand, nine hundred seventy-two".