22350639 has 4 divisors (see below), whose sum is σ = 29800856. Its totient is φ = 14900424.

The previous prime is 22350613. The next prime is 22350649. The reversal of 22350639 is 93605322.

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

It is not a de Polignac number, because 22350639 - 2⁵ = 22350607 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 (22350649) 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 3 ways as a sum of consecutive naturals, for example, 3725104 + ... + 3725109.

It is an arithmetic number, because the mean of its divisors is an integer number (7450214).

Almost surely, 2^22350639 is an apocalyptic number.

22350639 is a deficient number, since it is larger than the sum of its proper divisors (7450217).

22350639 is an equidigital number, since it uses as much as digits as its factorization.

22350639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7450216.

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 22350639 is about 4727.6462431108. The cubic root of 22350639 is about 281.6847364589.

The spelling of 22350639 in words is "twenty-two million, three hundred fifty thousand, six hundred thirty-nine".