22715406 has 24 divisors (see below), whose sum is σ = 56247984. Its totient is φ = 6490080.

The previous prime is 22715401. The next prime is 22715437. The reversal of 22715406 is 60451722.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22715406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22715401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90015 + ... + 90266.

It is an arithmetic number, because the mean of its divisors is an integer number (2343666).

Almost surely, 2^22715406 is an apocalyptic number.

22715406 is an abundant number, since it is smaller than the sum of its proper divisors (33532578).

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

22715406 is a wasteful number, since it uses less digits than its factorization.

22715406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180296 (or 180293 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 22715406 is about 4766.0681908676. The cubic root of 22715406 is about 283.2088591263.

The spelling of 22715406 in words is "twenty-two million, seven hundred fifteen thousand, four hundred six".