22864031 has 4 divisors (see below), whose sum is σ = 24208992. Its totient is φ = 21519072.

The previous prime is 22864027. The next prime is 22864033. The reversal of 22864031 is 13046822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22864031 - 2² = 22864027 is a prime.

It is a super-2 number, since 2×22864031² = 1045527827137922, 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 (22864033) 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, 672455 + ... + 672488.

It is an arithmetic number, because the mean of its divisors is an integer number (6052248).

Almost surely, 2^22864031 is an apocalyptic number.

22864031 is a deficient number, since it is larger than the sum of its proper divisors (1344961).

22864031 is a wasteful number, since it uses less digits than its factorization.

22864031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344960.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 22864031 is about 4781.6347622963. The cubic root of 22864031 is about 283.8251874989.

The spelling of 22864031 in words is "twenty-two million, eight hundred sixty-four thousand, thirty-one".