22549870 has 32 divisors (see below), whose sum is σ = 47157696. Its totient is φ = 7603200.

The previous prime is 22549861. The next prime is 22549873. The reversal of 22549870 is 7894522.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22549873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1630 + ... + 6910.

It is an arithmetic number, because the mean of its divisors is an integer number (1473678).

Almost surely, 2^22549870 is an apocalyptic number.

22549870 is an abundant number, since it is smaller than the sum of its proper divisors (24607826).

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

22549870 is a wasteful number, since it uses less digits than its factorization.

22549870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 22549870 is about 4748.6703402110. The cubic root of 22549870 is about 282.5192301630.

The spelling of 22549870 in words is "twenty-two million, five hundred forty-nine thousand, eight hundred seventy".