22294878 has 8 divisors (see below), whose sum is σ = 44589768. Its totient is φ = 7431624.

The previous prime is 22294849. The next prime is 22294901. The reversal of 22294878 is 87849222.

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

22294878 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1857901 + ... + 1857912.

It is an arithmetic number, because the mean of its divisors is an integer number (5573721).

Almost surely, 2^22294878 is an apocalyptic number.

22294878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

22294878 is a wasteful number, since it uses less digits than its factorization.

22294878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3715818.

The product of its digits is 129024, while the sum is 42.

The square root of 22294878 is about 4721.7452281969. The cubic root of 22294878 is about 281.4502897266.

The spelling of 22294878 in words is "twenty-two million, two hundred ninety-four thousand, eight hundred seventy-eight".