22494270 has 16 divisors (see below), whose sum is σ = 53986320. Its totient is φ = 5998464.

The previous prime is 22494259. The next prime is 22494301. The reversal of 22494270 is 7249422.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 749809 = 22494270 / (2 + 2 + 4 + 9 + 4 + 2 + 7 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 374875 + ... + 374934.

It is an arithmetic number, because the mean of its divisors is an integer number (3374145).

Almost surely, 2^22494270 is an apocalyptic number.

22494270 is an abundant number, since it is smaller than the sum of its proper divisors (31492050).

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

22494270 is a wasteful number, since it uses less digits than its factorization.

22494270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749819.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 22494270 is about 4742.8124567602. The cubic root of 22494270 is about 282.2868415788.

The spelling of 22494270 in words is "twenty-two million, four hundred ninety-four thousand, two hundred seventy".