22404021464 has 16 divisors (see below), whose sum is σ = 45826407720. Its totient is φ = 10183646080.

The previous prime is 22404021461. The next prime is 22404021481. The reversal of 22404021464 is 46412040422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22404021461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127295489 + ... + 127295664.

Almost surely, 2^22404021464 is an apocalyptic number.

It is an amenable number.

22404021464 is an abundant number, since it is smaller than the sum of its proper divisors (23422386256).

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

22404021464 is a wasteful number, since it uses less digits than its factorization.

22404021464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254591170 (or 254591166 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 22404021464 its reverse (46412040422), we get a palindrome (68816061886).

The spelling of 22404021464 in words is "twenty-two billion, four hundred four million, twenty-one thousand, four hundred sixty-four".