22958819 has 6 divisors (see below), whose sum is σ = 24860916. Its totient is φ = 21192600.

The previous prime is 22958809. The next prime is 22958839. The reversal of 22958819 is 91885922.

It is a de Polignac number, because none of the positive numbers 2^k-22958819 is a prime.

It is a super-2 number, since 2×22958819² = 1054214739749522, 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 22958819.

It is not an unprimeable number, because it can be changed into a prime (22958809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67757 + ... + 68094.

It is an arithmetic number, because the mean of its divisors is an integer number (4143486).

Almost surely, 2^22958819 is an apocalyptic number.

22958819 is a deficient number, since it is larger than the sum of its proper divisors (1902097).

22958819 is a wasteful number, since it uses less digits than its factorization.

22958819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135877 (or 135864 counting only the distinct ones).

The product of its digits is 103680, while the sum is 44.

The square root of 22958819 is about 4791.5361837306. The cubic root of 22958819 is about 284.2168671852.

The spelling of 22958819 in words is "twenty-two million, nine hundred fifty-eight thousand, eight hundred nineteen".