22038831 has 16 divisors (see below), whose sum is σ = 33268320. Its totient is φ = 14414400.

The previous prime is 22038829. The next prime is 22038839. The reversal of 22038831 is 13883022.

It is not a de Polignac number, because 22038831 - 2¹ = 22038829 is a prime.

It is a super-2 number, since 2×22038831² = 971420143693122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 22038795 and 22038804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22038839) 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 15 ways as a sum of consecutive naturals, for example, 6270 + ... + 9131.

It is an arithmetic number, because the mean of its divisors is an integer number (2079270).

Almost surely, 2^22038831 is an apocalyptic number.

22038831 is a deficient number, since it is larger than the sum of its proper divisors (11229489).

22038831 is a wasteful number, since it uses less digits than its factorization.

22038831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15463 (or 15457 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 22038831 is about 4694.5533333854. The cubic root of 22038831 is about 280.3686937263.

The spelling of 22038831 in words is "twenty-two million, thirty-eight thousand, eight hundred thirty-one".