22426640400 has 60 divisors (see below), whose sum is σ = 71840008592. Its totient is φ = 5980437120.

The previous prime is 22426640399. The next prime is 22426640417. The reversal of 22426640400 is 404662422.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9343234 + ... + 9345633.

Almost surely, 2^22426640400 is an apocalyptic number.

22426640400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22426640400 is an abundant number, since it is smaller than the sum of its proper divisors (49413368192).

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

22426640400 is a wasteful number, since it uses less digits than its factorization.

22426640400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18688888 (or 18688877 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The spelling of 22426640400 in words is "twenty-two billion, four hundred twenty-six million, six hundred forty thousand, four hundred".