22399641 has 36 divisors (see below), whose sum is σ = 36212176. Its totient is φ = 13329360.

The previous prime is 22399607. The next prime is 22399667. The reversal of 22399641 is 14699322.

22399641 is a `hidden beast` number, since 2 + 2 + 3 + 9 + 9 + 641 = 666.

It is not a de Polignac number, because 22399641 - 2⁹ = 22399129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22399596 and 22399605.

It is not an unprimeable number, because it can be changed into a prime (22399691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 72810 + ... + 73116.

Almost surely, 2^22399641 is an apocalyptic number.

It is an amenable number.

22399641 is a deficient number, since it is larger than the sum of its proper divisors (13812535).

22399641 is a wasteful number, since it uses less digits than its factorization.

22399641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 388 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 22399641 is about 4732.8259000306. The cubic root of 22399641 is about 281.8904433339.

The spelling of 22399641 in words is "twenty-two million, three hundred ninety-nine thousand, six hundred forty-one".