22722502 has 8 divisors (see below), whose sum is σ = 37182312. Its totient is φ = 10328400.

The previous prime is 22722481. The next prime is 22722509. The reversal of 22722502 is 20522722.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 1032841 = 22722502 / (2 + 2 + 7 + 2 + 2 + 5 + 0 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22722509) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516399 + ... + 516442.

It is an arithmetic number, because the mean of its divisors is an integer number (4647789).

Almost surely, 2^22722502 is an apocalyptic number.

22722502 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22722502 is a deficient number, since it is larger than the sum of its proper divisors (14459810).

22722502 is a wasteful number, since it uses less digits than its factorization.

22722502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032854.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 22722502 is about 4766.8125618698. The cubic root of 22722502 is about 283.2383463216.

It can be divided in two parts, 2272 and 2502, that added together give a palindrome (4774).

The spelling of 22722502 in words is "twenty-two million, seven hundred twenty-two thousand, five hundred two".