22139350 has 24 divisors (see below), whose sum is σ = 42059808. Its totient is φ = 8666400.

The previous prime is 22139339. The next prime is 22139353. The reversal of 22139350 is 5393122.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22139353) 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 11 ways as a sum of consecutive naturals, for example, 2361 + ... + 7060.

It is an arithmetic number, because the mean of its divisors is an integer number (1752492).

Almost surely, 2^22139350 is an apocalyptic number.

22139350 is a deficient number, since it is larger than the sum of its proper divisors (19920458).

22139350 is a wasteful number, since it uses less digits than its factorization.

22139350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9480 (or 9475 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 22139350 is about 4705.2470710899. The cubic root of 22139350 is about 280.7943007287.

The spelling of 22139350 in words is "twenty-two million, one hundred thirty-nine thousand, three hundred fifty".