22400770 has 16 divisors (see below), whose sum is σ = 46081728. Its totient is φ = 7680240.

The previous prime is 22400761. The next prime is 22400773. The reversal of 22400770 is 7700422.

It is not an unprimeable number, because it can be changed into a prime (22400773) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159936 + ... + 160075.

It is an arithmetic number, because the mean of its divisors is an integer number (2880108).

Almost surely, 2^22400770 is an apocalyptic number.

22400770 is an abundant number, since it is smaller than the sum of its proper divisors (23680958).

22400770 is a wasteful number, since it uses less digits than its factorization.

22400770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320025.

The product of its (nonzero) digits is 784, while the sum is 22.

The square root of 22400770 is about 4732.9451718777. The cubic root of 22400770 is about 281.8951792575.

The spelling of 22400770 in words is "twenty-two million, four hundred thousand, seven hundred seventy".