22059431 has 4 divisors (see below), whose sum is σ = 22071072. Its totient is φ = 22047792.

The previous prime is 22059419. The next prime is 22059463. The reversal of 22059431 is 13495022.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13495022 = 2 ⋅6747511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22059431 is a prime.

It is a super-2 number, since 2×22059431² = 973236992087522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22059431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22059481) 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, 2246 + ... + 7011.

It is an arithmetic number, because the mean of its divisors is an integer number (5517768).

Almost surely, 2^22059431 is an apocalyptic number.

22059431 is a deficient number, since it is larger than the sum of its proper divisors (11641).

22059431 is an equidigital number, since it uses as much as digits as its factorization.

22059431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11640.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 22059431 is about 4696.7468528759. The cubic root of 22059431 is about 280.4560213545.

The spelling of 22059431 in words is "twenty-two million, fifty-nine thousand, four hundred thirty-one".