22404223424 has 56 divisors (see below), whose sum is σ = 49810921968. Its totient is φ = 9908490240.

The previous prime is 22404223399. The next prime is 22404223447. The reversal of 22404223424 is 42432240422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404009 + ... + 456104.

Almost surely, 2^22404223424 is an apocalyptic number.

It is an amenable number.

22404223424 is an abundant number, since it is smaller than the sum of its proper divisors (27406698544).

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

22404223424 is a wasteful number, since it uses less digits than its factorization.

22404223424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860173 (or 860163 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 29.

Adding to 22404223424 its reverse (42432240422), we get a palindrome (64836463846).

The spelling of 22404223424 in words is "twenty-two billion, four hundred four million, two hundred twenty-three thousand, four hundred twenty-four".