38112021 has 12 divisors (see below), whose sum is σ = 55203148. Its totient is φ = 25337664.

The previous prime is 38112017. The next prime is 38112029. The reversal of 38112021 is 12021183.

It can be written as a sum of positive squares in 2 ways, for example, as 15444900 + 22667121 = 3930^2 + 4761^2 .

It is not a de Polignac number, because 38112021 - 2² = 38112017 is a prime.

It is a super-2 number, since 2×38112021² = 2905052289408882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38111985 and 38112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38112029) 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 11 ways as a sum of consecutive naturals, for example, 2320 + ... + 9033.

Almost surely, 2^38112021 is an apocalyptic number.

It is an amenable number.

38112021 is a deficient number, since it is larger than the sum of its proper divisors (17091127).

38112021 is a wasteful number, since it uses less digits than its factorization.

38112021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11732 (or 11729 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 38112021 is about 6173.4934194506. The cubic root of 38112021 is about 336.5275778535.

It can be divided in two parts, 3811 and 2021, that added together give a cube (5832 = 18³).

The spelling of 38112021 in words is "thirty-eight million, one hundred twelve thousand, twenty-one".