22898431 has 4 divisors (see below), whose sum is σ = 23286600. Its totient is φ = 22510264.

The previous prime is 22898413. The next prime is 22898437. The reversal of 22898431 is 13489822.

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 22898431 - 2⁵ = 22898399 is a prime.

It is a super-2 number, since 2×22898431² = 1048676284523522, 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 (22898437) 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, 193996 + ... + 194113.

It is an arithmetic number, because the mean of its divisors is an integer number (5821650).

Almost surely, 2^22898431 is an apocalyptic number.

22898431 is a deficient number, since it is larger than the sum of its proper divisors (388169).

22898431 is an equidigital number, since it uses as much as digits as its factorization.

22898431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388168.

The product of its digits is 27648, while the sum is 37.

The square root of 22898431 is about 4785.2305064647. The cubic root of 22898431 is about 283.9674589112.

The spelling of 22898431 in words is "twenty-two million, eight hundred ninety-eight thousand, four hundred thirty-one".