22740999 has 8 divisors (see below), whose sum is σ = 30348912. Its totient is φ = 15146880.

The previous prime is 22740961. The next prime is 22741027. The reversal of 22740999 is 99904722.

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

It is not a de Polignac number, because 22740999 - 2⁸ = 22740743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22740999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22740919) 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, 1359 + ... + 6879.

It is an arithmetic number, because the mean of its divisors is an integer number (3793614).

Almost surely, 2^22740999 is an apocalyptic number.

22740999 is a deficient number, since it is larger than the sum of its proper divisors (7607913).

22740999 is a wasteful number, since it uses less digits than its factorization.

22740999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6897.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 22740999 is about 4768.7523525551. The cubic root of 22740999 is about 283.3151811516.

The spelling of 22740999 in words is "twenty-two million, seven hundred forty thousand, nine hundred ninety-nine".