22779474 has 32 divisors (see below), whose sum is σ = 46812480. Its totient is φ = 7387200.

The previous prime is 22779469. The next prime is 22779481. The reversal of 22779474 is 47497722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39609 + ... + 40179.

It is an arithmetic number, because the mean of its divisors is an integer number (1462890).

Almost surely, 2^22779474 is an apocalyptic number.

22779474 is an abundant number, since it is smaller than the sum of its proper divisors (24033006).

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

22779474 is a wasteful number, since it uses less digits than its factorization.

22779474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746.

The product of its digits is 197568, while the sum is 42.

The square root of 22779474 is about 4772.7847217322. The cubic root of 22779474 is about 283.4748693854.

The spelling of 22779474 in words is "twenty-two million, seven hundred seventy-nine thousand, four hundred seventy-four".