22858428 has 12 divisors (see below), whose sum is σ = 53336360. Its totient is φ = 7619472.

The previous prime is 22858399. The next prime is 22858441. The reversal of 22858428 is 82485822.

It is a tau number, because it is divible by the number of its divisors (12).

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, 952423 + ... + 952446.

Almost surely, 2^22858428 is an apocalyptic number.

It is an amenable number.

22858428 is an abundant number, since it is smaller than the sum of its proper divisors (30477932).

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

22858428 is a wasteful number, since it uses less digits than its factorization.

22858428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904876 (or 1904874 counting only the distinct ones).

The product of its digits is 81920, while the sum is 39.

The square root of 22858428 is about 4781.0488389055. The cubic root of 22858428 is about 283.8020011172.

The spelling of 22858428 in words is "twenty-two million, eight hundred fifty-eight thousand, four hundred twenty-eight".