22478960 has 80 divisors (see below), whose sum is σ = 60371136. Its totient is φ = 7624704.

The previous prime is 22478959. The next prime is 22478971. The reversal of 22478960 is 6987422.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76574 + ... + 76866.

Almost surely, 2^22478960 is an apocalyptic number.

22478960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22478960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30185568).

22478960 is an abundant number, since it is smaller than the sum of its proper divisors (37892176).

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

22478960 is a wasteful number, since it uses less digits than its factorization.

22478960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 444 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 22478960 is about 4741.1981608028. The cubic root of 22478960 is about 282.2227838963. Note that the first 3 decimals are identical.

The spelling of 22478960 in words is "twenty-two million, four hundred seventy-eight thousand, nine hundred sixty".