22093240 has 32 divisors (see below), whose sum is σ = 53534880. Its totient is φ = 8157312.

The previous prime is 22093213. The next prime is 22093241. The reversal of 22093240 is 4239022.

It is a super-2 number, since 2×22093240² = 976222507395200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22093241) 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, 20724 + ... + 21763.

It is an arithmetic number, because the mean of its divisors is an integer number (1672965).

Almost surely, 2^22093240 is an apocalyptic number.

22093240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22093240 is an abundant number, since it is smaller than the sum of its proper divisors (31441640).

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

22093240 is a wasteful number, since it uses less digits than its factorization.

22093240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42511 (or 42507 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 22093240 is about 4700.3446682132. The cubic root of 22093240 is about 280.5992268862.

The spelling of 22093240 in words is "twenty-two million, ninety-three thousand, two hundred forty".