38172152 has 8 divisors (see below), whose sum is σ = 71572800. Its totient is φ = 19086072.

The previous prime is 38172151. The next prime is 38172163. The reversal of 38172152 is 25127183.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×38172152² = 2914226376622208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38172151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2385752 + ... + 2385767.

It is an arithmetic number, because the mean of its divisors is an integer number (8946600).

Almost surely, 2^38172152 is an apocalyptic number.

It is an amenable number.

38172152 is a deficient number, since it is larger than the sum of its proper divisors (33400648).

38172152 is a wasteful number, since it uses less digits than its factorization.

38172152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4771525 (or 4771521 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 38172152 is about 6178.3615951157. The cubic root of 38172152 is about 336.7044696084.

The spelling of 38172152 in words is "thirty-eight million, one hundred seventy-two thousand, one hundred fifty-two".