22465420 has 24 divisors (see below), whose sum is σ = 47432448. Its totient is φ = 8937600.

The previous prime is 22465409. The next prime is 22465423. The reversal of 22465420 is 2456422.

It is not an unprimeable number, because it can be changed into a prime (22465423) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 880 + ... + 6760.

It is an arithmetic number, because the mean of its divisors is an integer number (1976352).

Almost surely, 2^22465420 is an apocalyptic number.

22465420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22465420 is an abundant number, since it is smaller than the sum of its proper divisors (24967028).

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

22465420 is a wasteful number, since it uses less digits than its factorization.

22465420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6081 (or 6079 counting only the distinct ones).

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

The square root of 22465420 is about 4739.7700366157. The cubic root of 22465420 is about 282.1661077275.

The spelling of 22465420 in words is "twenty-two million, four hundred sixty-five thousand, four hundred twenty".