22540079 has 8 divisors (see below), whose sum is σ = 23941008. Its totient is φ = 21147520.

The previous prime is 22540031. The next prime is 22540081. The reversal of 22540079 is 97004522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22540079 - 2²⁴ = 5762863 is a prime.

It is a super-2 number, since 2×22540079² = 1016110322652482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22540009) 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, 3989 + ... + 7809.

It is an arithmetic number, because the mean of its divisors is an integer number (2992626).

Almost surely, 2^22540079 is an apocalyptic number.

22540079 is a deficient number, since it is larger than the sum of its proper divisors (1400929).

22540079 is a wasteful number, since it uses less digits than its factorization.

22540079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 22540079 is about 4747.6393081194. The cubic root of 22540079 is about 282.4783349350.

It can be divided in two parts, 225 and 40079, that added together give a palindrome (40304).

The spelling of 22540079 in words is "twenty-two million, five hundred forty thousand, seventy-nine".