22874581 has 16 divisors (see below), whose sum is σ = 24773760. Its totient is φ = 21067200.

The previous prime is 22874569. The next prime is 22874609. The reversal of 22874581 is 18547822.

It is a cyclic number.

It is not a de Polignac number, because 22874581 - 2²¹ = 20777429 is a prime.

It is a super-2 number, since 2×22874581² = 1046492911851122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22874581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22874531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99775 + ... + 100003.

It is an arithmetic number, because the mean of its divisors is an integer number (1548360).

Almost surely, 2^22874581 is an apocalyptic number.

It is an amenable number.

22874581 is a deficient number, since it is larger than the sum of its proper divisors (1899179).

22874581 is a wasteful number, since it uses less digits than its factorization.

22874581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

The product of its digits is 35840, while the sum is 37.

The square root of 22874581 is about 4782.7378142650. The cubic root of 22874581 is about 283.8688353183.

It can be divided in two parts, 228745 and 81, that added together give a triangular number (228826 = T₆₇₆).

The spelling of 22874581 in words is "twenty-two million, eight hundred seventy-four thousand, five hundred eighty-one".