38181057 has 16 divisors (see below), whose sum is σ = 52715520. Its totient is φ = 24555600.

The previous prime is 38181049. The next prime is 38181071. The reversal of 38181057 is 75018183.

It is not a de Polignac number, because 38181057 - 2³ = 38181049 is a prime.

It is a super-2 number, since 2×38181057² = 2915586227274498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38181007) 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, 52744 + ... + 53462.

It is an arithmetic number, because the mean of its divisors is an integer number (3294720).

Almost surely, 2^38181057 is an apocalyptic number.

It is an amenable number.

38181057 is a deficient number, since it is larger than the sum of its proper divisors (14534463).

38181057 is a wasteful number, since it uses less digits than its factorization.

38181057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 38181057 is about 6179.0822134035. The cubic root of 38181057 is about 336.7306503014.

The spelling of 38181057 in words is "thirty-eight million, one hundred eighty-one thousand, fifty-seven".