38197152 has 72 divisors (see below), whose sum is σ = 124147296. Its totient is φ = 10912896.

The previous prime is 38197151. The next prime is 38197157. The reversal of 38197152 is 25179183.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×38197152² = 2918044841822208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (38197151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7458 + ... + 11489.

It is an arithmetic number, because the mean of its divisors is an integer number (1724268).

Almost surely, 2^38197152 is an apocalyptic number.

38197152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38197152 is an abundant number, since it is smaller than the sum of its proper divisors (85950144).

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

38197152 is a wasteful number, since it uses less digits than its factorization.

38197152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18970 (or 18959 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 38197152 is about 6180.3844540611. The cubic root of 38197152 is about 336.7779592628. Note that the first 3 decimals are identical.

The spelling of 38197152 in words is "thirty-eight million, one hundred ninety-seven thousand, one hundred fifty-two".