22665474 has 64 divisors (see below), whose sum is σ = 55036800. Its totient is φ = 6872256.

The previous prime is 22665469. The next prime is 22665481. The reversal of 22665474 is 47456622.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58072 + ... + 58460.

It is an arithmetic number, because the mean of its divisors is an integer number (859950).

Almost surely, 2^22665474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22665474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27518400).

22665474 is an abundant number, since it is smaller than the sum of its proper divisors (32371326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22665474 is a wasteful number, since it uses less digits than its factorization.

22665474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 490 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 22665474 is about 4760.8270289940. The cubic root of 22665474 is about 283.0011944994.

The spelling of 22665474 in words is "twenty-two million, six hundred sixty-five thousand, four hundred seventy-four".