22478876 has 24 divisors (see below), whose sum is σ = 45133536. Its totient is φ = 9596160.

The previous prime is 22478867. The next prime is 22478891. The reversal of 22478876 is 67887422.

22478876 = 1789² + 1790² + ... + 1795².

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6440 + ... + 9296.

It is an arithmetic number, because the mean of its divisors is an integer number (1880564).

Almost surely, 2^22478876 is an apocalyptic number.

It is an amenable number.

22478876 is an abundant number, since it is smaller than the sum of its proper divisors (22654660).

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

22478876 is a wasteful number, since it uses less digits than its factorization.

22478876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149 (or 3147 counting only the distinct ones).

The product of its digits is 301056, while the sum is 44.

The square root of 22478876 is about 4741.1893022743. The cubic root of 22478876 is about 282.2224323566. Note that the first 3 decimals are identical.

The spelling of 22478876 in words is "twenty-two million, four hundred seventy-eight thousand, eight hundred seventy-six".