22064920 has 32 divisors (see below), whose sum is σ = 50465520. Its totient is φ = 8680320.

The previous prime is 22064897. The next prime is 22064923. The reversal of 22064920 is 2946022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22064923) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2082 + ... + 6961.

Almost surely, 2^22064920 is an apocalyptic number.

22064920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22064920 is an abundant number, since it is smaller than the sum of its proper divisors (28400600).

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

22064920 is a wasteful number, since it uses less digits than its factorization.

22064920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9115 (or 9111 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 22064920 is about 4697.3311571572. The cubic root of 22064920 is about 280.4792811783.

The spelling of 22064920 in words is "twenty-two million, sixty-four thousand, nine hundred twenty".