22273404 has 24 divisors (see below), whose sum is σ = 52276560. Its totient is φ = 7380864.

The previous prime is 22273403. The next prime is 22273423. The reversal of 22273404 is 40437222.

It is a super-2 number, since 2×22273404² = 992209051494432, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22273403) 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, 3289 + ... + 7440.

It is an arithmetic number, because the mean of its divisors is an integer number (2178190).

Almost surely, 2^22273404 is an apocalyptic number.

It is an amenable number.

22273404 is an abundant number, since it is smaller than the sum of its proper divisors (30003156).

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

22273404 is a wasteful number, since it uses less digits than its factorization.

22273404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10909 (or 10907 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 22273404 is about 4719.4707330378. The cubic root of 22273404 is about 281.3598981876.

The spelling of 22273404 in words is "twenty-two million, two hundred seventy-three thousand, four hundred four".