22736407 has 4 divisors (see below), whose sum is σ = 23933080. Its totient is φ = 21539736.

The previous prime is 22736359. The next prime is 22736447. The reversal of 22736407 is 70463722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 22736407 - 2²³ = 14347799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22736447) 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, 598308 + ... + 598345.

It is an arithmetic number, because the mean of its divisors is an integer number (5983270).

Almost surely, 2^22736407 is an apocalyptic number.

22736407 is a deficient number, since it is larger than the sum of its proper divisors (1196673).

22736407 is a wasteful number, since it uses less digits than its factorization.

22736407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1196672.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 22736407 is about 4768.2708605951. The cubic root of 22736407 is about 283.2961102965.

The spelling of 22736407 in words is "twenty-two million, seven hundred thirty-six thousand, four hundred seven".