22273392 has 40 divisors (see below), whose sum is σ = 59527440. Its totient is φ = 7168000.

The previous prime is 22273379. The next prime is 22273399. The reversal of 22273392 is 29337222.

It is a super-2 number, since 2×22273392² = 992207982371328, which contains 22 as substring.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22273399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6609 + ... + 9392.

It is an arithmetic number, because the mean of its divisors is an integer number (1488186).

Almost surely, 2^22273392 is an apocalyptic number.

It is an amenable number.

22273392 is an abundant number, since it is smaller than the sum of its proper divisors (37254048).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22273392 is a wasteful number, since it uses less digits than its factorization.

22273392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16041 (or 16035 counting only the distinct ones).

The product of its digits is 9072, while the sum is 30.

The square root of 22273392 is about 4719.4694617086. The cubic root of 22273392 is about 281.3598476592.

The spelling of 22273392 in words is "twenty-two million, two hundred seventy-three thousand, three hundred ninety-two".