22464749 has 4 divisors (see below), whose sum is σ = 22514364. Its totient is φ = 22415136.

The previous prime is 22464737. The next prime is 22464773. The reversal of 22464749 is 94746422.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16752649 + 5712100 = 4093^2 + 2390^2 .

It is a cyclic number.

It is not a de Polignac number, because 22464749 - 2⁴ = 22464733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22464709) 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, 24122 + ... + 25035.

It is an arithmetic number, because the mean of its divisors is an integer number (5628591).

Almost surely, 2^22464749 is an apocalyptic number.

It is an amenable number.

22464749 is a deficient number, since it is larger than the sum of its proper divisors (49615).

22464749 is an equidigital number, since it uses as much as digits as its factorization.

22464749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49614.

The product of its digits is 96768, while the sum is 38.

The square root of 22464749 is about 4739.6992520623. The cubic root of 22464749 is about 282.1632984419.

The spelling of 22464749 in words is "twenty-two million, four hundred sixty-four thousand, seven hundred forty-nine".