22391254 has 4 divisors (see below), whose sum is σ = 33586884. Its totient is φ = 11195626.

The previous prime is 22391251. The next prime is 22391263. The reversal of 22391254 is 45219322.

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 (22391251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5597812 + ... + 5597815.

It is an arithmetic number, because the mean of its divisors is an integer number (8396721).

Almost surely, 2^22391254 is an apocalyptic number.

22391254 is a deficient number, since it is larger than the sum of its proper divisors (11195630).

22391254 is a wasteful number, since it uses less digits than its factorization.

22391254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11195629.

The product of its digits is 4320, while the sum is 28.

The square root of 22391254 is about 4731.9397713834. The cubic root of 22391254 is about 281.8552566051.

The spelling of 22391254 in words is "twenty-two million, three hundred ninety-one thousand, two hundred fifty-four".