22464779 has 4 divisors (see below), whose sum is σ = 22502760. Its totient is φ = 22426800.

The previous prime is 22464773. The next prime is 22464787. The reversal of 22464779 is 97746422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22464779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22464773) 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, 18089 + ... + 19290.

It is an arithmetic number, because the mean of its divisors is an integer number (5625690).

Almost surely, 2^22464779 is an apocalyptic number.

22464779 is a deficient number, since it is larger than the sum of its proper divisors (37981).

22464779 is an equidigital number, since it uses as much as digits as its factorization.

22464779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37980.

The product of its digits is 169344, while the sum is 41.

The square root of 22464779 is about 4739.7024168190. The cubic root of 22464779 is about 282.1634240446.

The spelling of 22464779 in words is "twenty-two million, four hundred sixty-four thousand, seven hundred seventy-nine".