38740072 has 16 divisors (see below), whose sum is σ = 83014560. Its totient is φ = 16602864.

The previous prime is 38740061. The next prime is 38740081. The reversal of 38740072 is 27004783.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345838 + ... + 345949.

It is an arithmetic number, because the mean of its divisors is an integer number (5188410).

Almost surely, 2^38740072 is an apocalyptic number.

It is an amenable number.

38740072 is an abundant number, since it is smaller than the sum of its proper divisors (44274488).

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

38740072 is a wasteful number, since it uses less digits than its factorization.

38740072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691800 (or 691796 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 38740072 is about 6224.1523117610. The cubic root of 38740072 is about 338.3660704785.

The spelling of 38740072 in words is "thirty-eight million, seven hundred forty thousand, seventy-two".