38849972 has 12 divisors (see below), whose sum is σ = 77700000. Its totient is φ = 16649976.

The previous prime is 38849971. The next prime is 38849977. The reversal of 38849972 is 27994883.

It is a happy number.

38849972 is an admirable number.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 38849972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38849971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 693722 + ... + 693777.

It is an arithmetic number, because the mean of its divisors is an integer number (6475000).

Almost surely, 2^38849972 is an apocalyptic number.

It is an amenable number.

38849972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

38849972 is a wasteful number, since it uses less digits than its factorization.

38849972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387510 (or 1387508 counting only the distinct ones).

The product of its digits is 870912, while the sum is 50.

The square root of 38849972 is about 6232.9745707808. The cubic root of 38849972 is about 338.6857336452.

The spelling of 38849972 in words is "thirty-eight million, eight hundred forty-nine thousand, nine hundred seventy-two".