22147090 has 64 divisors (see below), whose sum is σ = 49641984. Its totient is φ = 6939648.

The previous prime is 22147079. The next prime is 22147109. The reversal of 22147090 is 9074122.

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, 43779 + ... + 44281.

It is an arithmetic number, because the mean of its divisors is an integer number (775656).

Almost surely, 2^22147090 is an apocalyptic number.

22147090 is an abundant number, since it is smaller than the sum of its proper divisors (27494894).

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

22147090 is a wasteful number, since it uses less digits than its factorization.

22147090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 22147090 is about 4706.0694852499. The cubic root of 22147090 is about 280.8270191640.

The spelling of 22147090 in words is "twenty-two million, one hundred forty-seven thousand, ninety".