22064670 has 64 divisors (see below), whose sum is σ = 59719680. Its totient is φ = 5796000.

The previous prime is 22064639. The next prime is 22064671. The reversal of 22064670 is 7646022.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22064671) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18595 + ... + 19745.

It is an arithmetic number, because the mean of its divisors is an integer number (933120).

Almost surely, 2^22064670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22064670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29859840).

22064670 is an abundant number, since it is smaller than the sum of its proper divisors (37655010).

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

22064670 is a wasteful number, since it uses less digits than its factorization.

22064670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 22064670 is about 4697.3045462265. The cubic root of 22064670 is about 280.4782218786.

The spelling of 22064670 in words is "twenty-two million, sixty-four thousand, six hundred seventy".