38163021 has 32 divisors (see below), whose sum is σ = 57456000. Its totient is φ = 22374144.

The previous prime is 38163017. The next prime is 38163023. The reversal of 38163021 is 12036183.

It is not a de Polignac number, because 38163021 - 2² = 38163017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38162982 and 38163000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38163023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 76230 + ... + 76728.

It is an arithmetic number, because the mean of its divisors is an integer number (1795500).

Almost surely, 2^38163021 is an apocalyptic number.

It is an amenable number.

38163021 is a deficient number, since it is larger than the sum of its proper divisors (19292979).

38163021 is a wasteful number, since it uses less digits than its factorization.

38163021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 38163021 is about 6177.6226009688. The cubic root of 38163021 is about 336.6776202473.

The spelling of 38163021 in words is "thirty-eight million, one hundred sixty-three thousand, twenty-one".