22888404 has 144 divisors (see below), whose sum is σ = 75479040. Its totient is φ = 5670720.

The previous prime is 22888391. The next prime is 22888417. The reversal of 22888404 is 40488822.

It is an interprime number because it is at equal distance from previous prime (22888391) and next prime (22888417).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 63577 + ... + 63935.

It is an arithmetic number, because the mean of its divisors is an integer number (524160).

Almost surely, 2^22888404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22888404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37739520).

22888404 is an abundant number, since it is smaller than the sum of its proper divisors (52590636).

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

22888404 is a wasteful number, since it uses less digits than its factorization.

22888404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 405 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 22888404 is about 4784.1826888195. The cubic root of 22888404 is about 283.9260039979.

It can be divided in two parts, 2 and 2888404, that added together give a triangular number (2888406 = T₂₄₀₃).

The spelling of 22888404 in words is "twenty-two million, eight hundred eighty-eight thousand, four hundred four".