23621930 has 8 divisors (see below), whose sum is σ = 42519492. Its totient is φ = 9448768.

The previous prime is 23621929. The next prime is 23621957. The reversal of 23621930 is 3912632.

It can be written as a sum of positive squares in 2 ways, for example, as 23454649 + 167281 = 4843^2 + 409^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 23621930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1181087 + ... + 1181106.

Almost surely, 2^23621930 is an apocalyptic number.

23621930 is a deficient number, since it is larger than the sum of its proper divisors (18897562).

23621930 is a wasteful number, since it uses less digits than its factorization.

23621930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362200.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 23621930 is about 4860.2397060227. The cubic root of 23621930 is about 286.9272478854.

The spelling of 23621930 in words is "twenty-three million, six hundred twenty-one thousand, nine hundred thirty".