38252181 has 16 divisors (see below), whose sum is σ = 56052288. Its totient is φ = 23011200.

The previous prime is 38252177. The next prime is 38252183. The reversal of 38252181 is 18125283.

It is not a de Polignac number, because 38252181 - 2² = 38252177 is a prime.

It is a super-2 number, since 2×38252181² = 2926458702513522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38252183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 291 + ... + 8751.

It is an arithmetic number, because the mean of its divisors is an integer number (3503268).

Almost surely, 2^38252181 is an apocalyptic number.

It is an amenable number.

38252181 is a deficient number, since it is larger than the sum of its proper divisors (17800107).

38252181 is a wasteful number, since it uses less digits than its factorization.

38252181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8612.

The product of its digits is 3840, while the sum is 30.

The square root of 38252181 is about 6184.8347593125. The cubic root of 38252181 is about 336.9396088516.

It can be divided in two parts, 3825 and 2181, that added together give a palindrome (6006).

The spelling of 38252181 in words is "thirty-eight million, two hundred fifty-two thousand, one hundred eighty-one".