22878416 has 40 divisors (see below), whose sum is σ = 49172448. Its totient is φ = 10224000.

The previous prime is 22878407. The next prime is 22878431. The reversal of 22878416 is 61487822.

It is a self number, because there is not a number n which added to its sum of digits gives 22878416.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9671 + ... + 11801.

Almost surely, 2^22878416 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 22878416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24586224).

22878416 is an abundant number, since it is smaller than the sum of its proper divisors (26294032).

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

22878416 is a wasteful number, since it uses less digits than its factorization.

22878416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2211 (or 2205 counting only the distinct ones).

The product of its digits is 43008, while the sum is 38.

The square root of 22878416 is about 4783.1387184567. The cubic root of 22878416 is about 283.8846982850.

The spelling of 22878416 in words is "twenty-two million, eight hundred seventy-eight thousand, four hundred sixteen".