22447422 has 32 divisors (see below), whose sum is σ = 50038560. Its totient is φ = 7459200.

The previous prime is 22447393. The next prime is 22447457. The reversal of 22447422 is 22474422.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

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, 31672 + ... + 32372.

It is an arithmetic number, because the mean of its divisors is an integer number (1563705).

Almost surely, 2^22447422 is an apocalyptic number.

22447422 is an abundant number, since it is smaller than the sum of its proper divisors (27591138).

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

22447422 is a wasteful number, since it uses less digits than its factorization.

22447422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305 (or 1299 counting only the distinct ones).

The product of its digits is 7168, while the sum is 27.

The square root of 22447422 is about 4737.8710408790. The cubic root of 22447422 is about 282.0907358539.

Subtracting 22447422 from its reverse (22474422), we obtain a cube (27000 = 30³).

The spelling of 22447422 in words is "twenty-two million, four hundred forty-seven thousand, four hundred twenty-two".