22642450 has 24 divisors (see below), whose sum is σ = 42408000. Its totient is φ = 8994000.

The previous prime is 22642429. The next prime is 22642457. The reversal of 22642450 is 5424622.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (22642457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6051 + ... + 9049.

It is an arithmetic number, because the mean of its divisors is an integer number (1767000).

Almost surely, 2^22642450 is an apocalyptic number.

22642450 is a deficient number, since it is larger than the sum of its proper divisors (19765550).

22642450 is a wasteful number, since it uses less digits than its factorization.

22642450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3162 (or 3157 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 22642450 is about 4758.4083473363. The cubic root of 22642450 is about 282.9053361167.

The spelling of 22642450 in words is "twenty-two million, six hundred forty-two thousand, four hundred fifty".