22424400420 has 96 divisors (see below), whose sum is σ = 63228211200. Its totient is φ = 5938045824.

The previous prime is 22424400407. The next prime is 22424400433. The reversal of 22424400420 is 2400442422.

It is an interprime number because it is at equal distance from previous prime (22424400407) and next prime (22424400433).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12747501 + ... + 12749259.

It is an arithmetic number, because the mean of its divisors is an integer number (658627200).

Almost surely, 2^22424400420 is an apocalyptic number.

22424400420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22424400420 is an abundant number, since it is smaller than the sum of its proper divisors (40803810780).

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

22424400420 is a wasteful number, since it uses less digits than its factorization.

22424400420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137 (or 3135 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 22424400420 its reverse (2400442422), we get a palindrome (24824842842).

The spelling of 22424400420 in words is "twenty-two billion, four hundred twenty-four million, four hundred thousand, four hundred twenty".