38857272 has 16 divisors (see below), whose sum is σ = 97143240. Its totient is φ = 12952416.

The previous prime is 38857271. The next prime is 38857277. The reversal of 38857272 is 27275883.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38857271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809503 + ... + 809550.

Almost surely, 2^38857272 is an apocalyptic number.

It is an amenable number.

38857272 is an abundant number, since it is smaller than the sum of its proper divisors (58285968).

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

38857272 is a wasteful number, since it uses less digits than its factorization.

38857272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619062 (or 1619058 counting only the distinct ones).

The product of its digits is 188160, while the sum is 42.

The square root of 38857272 is about 6233.5601384762. The cubic root of 38857272 is about 338.7069455954.

The spelling of 38857272 in words is "thirty-eight million, eight hundred fifty-seven thousand, two hundred seventy-two".