22139302 has 4 divisors (see below), whose sum is σ = 33208956. Its totient is φ = 11069650.

The previous prime is 22139297. The next prime is 22139309. The reversal of 22139302 is 20393122.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22139309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5534824 + ... + 5534827.

It is an arithmetic number, because the mean of its divisors is an integer number (8302239).

Almost surely, 2^22139302 is an apocalyptic number.

22139302 is a deficient number, since it is larger than the sum of its proper divisors (11069654).

22139302 is a wasteful number, since it uses less digits than its factorization.

22139302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11069653.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 22139302 is about 4705.2419703985. The cubic root of 22139302 is about 280.7940977999.

The spelling of 22139302 in words is "twenty-two million, one hundred thirty-nine thousand, three hundred two".