38372381 has 4 divisors (see below), whose sum is σ = 40392000. Its totient is φ = 36352764.

The previous prime is 38372363. The next prime is 38372401. The reversal of 38372381 is 18327383.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38372381 - 2⁶ = 38372317 is a prime.

It is a super-2 number, since 2×38372381² = 2944879247218322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38372681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009781 + ... + 1009818.

It is an arithmetic number, because the mean of its divisors is an integer number (10098000).

Almost surely, 2^38372381 is an apocalyptic number.

It is an amenable number.

38372381 is a deficient number, since it is larger than the sum of its proper divisors (2019619).

38372381 is a wasteful number, since it uses less digits than its factorization.

38372381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019618.

The product of its digits is 24192, while the sum is 35.

The square root of 38372381 is about 6194.5444545987. The cubic root of 38372381 is about 337.2921621141.

The spelling of 38372381 in words is "thirty-eight million, three hundred seventy-two thousand, three hundred eighty-one".