22224078 has 16 divisors (see below), whose sum is σ = 49386960. Its totient is φ = 7408008.

The previous prime is 22224073. The next prime is 22224079. The reversal of 22224078 is 87042222.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22224071) 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 7 ways as a sum of consecutive naturals, for example, 205725 + ... + 205832.

It is an arithmetic number, because the mean of its divisors is an integer number (3086685).

Almost surely, 2^22224078 is an apocalyptic number.

22224078 is an abundant number, since it is smaller than the sum of its proper divisors (27162882).

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

22224078 is a wasteful number, since it uses less digits than its factorization.

22224078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411568 (or 411562 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 22224078 is about 4714.2420387587. The cubic root of 22224078 is about 281.1520476674.

The spelling of 22224078 in words is "twenty-two million, two hundred twenty-four thousand, seventy-eight".