220875440 has 40 divisors (see below), whose sum is σ = 535867488. Its totient is φ = 84508160.

The previous prime is 220875427. The next prime is 220875461. The reversal of 220875440 is 44578022.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 220875397 and 220875406.

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, 58181 + ... + 61860.

Almost surely, 2^220875440 is an apocalyptic number.

220875440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220875440 is an abundant number, since it is smaller than the sum of its proper divisors (314992048).

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

220875440 is a wasteful number, since it uses less digits than its factorization.

220875440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120077 (or 120071 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 220875440 is about 14861.8787506829. The cubic root of 220875440 is about 604.4807511152.

The spelling of 220875440 in words is "two hundred twenty million, eight hundred seventy-five thousand, four hundred forty".