22507930 has 8 divisors (see below), whose sum is σ = 40514292. Its totient is φ = 9003168.

The previous prime is 22507907. The next prime is 22507937. The reversal of 22507930 is 3970522.

It can be written as a sum of positive squares in 2 ways, for example, as 22496049 + 11881 = 4743^2 + 109^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22507937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1125387 + ... + 1125406.

Almost surely, 2^22507930 is an apocalyptic number.

22507930 is a deficient number, since it is larger than the sum of its proper divisors (18006362).

22507930 is a wasteful number, since it uses less digits than its factorization.

22507930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250800.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 22507930 is about 4744.2523120087. The cubic root of 22507930 is about 282.3439710607.

The spelling of 22507930 in words is "twenty-two million, five hundred seven thousand, nine hundred thirty".