22739530 has 24 divisors (see below), whose sum is σ = 44992836. Its totient is φ = 8268480.

The previous prime is 22739527. The next prime is 22739537. The reversal of 22739530 is 3593722.

It can be written as a sum of positive squares in 2 ways, for example, as 22686169 + 53361 = 4763^2 + 231^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22739492 and 22739501.

It is not an unprimeable number, because it can be changed into a prime (22739537) 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, 8187 + ... + 10606.

Almost surely, 2^22739530 is an apocalyptic number.

22739530 is a deficient number, since it is larger than the sum of its proper divisors (22253306).

22739530 is a wasteful number, since it uses less digits than its factorization.

22739530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18822 (or 18811 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 22739530 is about 4768.5983265526. The cubic root of 22739530 is about 283.3090805846.

The spelling of 22739530 in words is "twenty-two million, seven hundred thirty-nine thousand, five hundred thirty".