22464491 has 24 divisors (see below), whose sum is σ = 28191744. Its totient is φ = 17796240.

The previous prime is 22464469. The next prime is 22464503. The reversal of 22464491 is 19446422.

It is not a de Polignac number, because 22464491 - 2¹⁸ = 22202347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22464461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34616 + ... + 35258.

It is an arithmetic number, because the mean of its divisors is an integer number (1174656).

Almost surely, 2^22464491 is an apocalyptic number.

22464491 is a deficient number, since it is larger than the sum of its proper divisors (5727253).

22464491 is a wasteful number, since it uses less digits than its factorization.

22464491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 704 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 22464491 is about 4739.6720350674. The cubic root of 22464491 is about 282.1622182546.

It can be divided in two parts, 2246 and 4491, that multiplied together give a triangular number (10086786 = T₄₄₉₁).

The spelling of 22464491 in words is "twenty-two million, four hundred sixty-four thousand, four hundred ninety-one".