22507090 has 8 divisors (see below), whose sum is σ = 40512780. Its totient is φ = 9002832.

The previous prime is 22507061. The next prime is 22507117. The reversal of 22507090 is 9070522.

It can be written as a sum of positive squares in 2 ways, for example, as 21040569 + 1466521 = 4587^2 + 1211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125345 + ... + 1125364.

Almost surely, 2^22507090 is an apocalyptic number.

22507090 is a deficient number, since it is larger than the sum of its proper divisors (18005690).

22507090 is a wasteful number, since it uses less digits than its factorization.

22507090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250716.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 22507090 is about 4744.1637830075. The cubic root of 22507090 is about 282.3404586410.

The spelling of 22507090 in words is "twenty-two million, five hundred seven thousand, ninety".