220581460 has 48 divisors (see below), whose sum is σ = 535066560. Its totient is φ = 75491840.

The previous prime is 220581433. The next prime is 220581479. The reversal of 220581460 is 64185022.

220581460 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 25750 + ... + 33229.

It is an arithmetic number, because the mean of its divisors is an integer number (11147220).

Almost surely, 2^220581460 is an apocalyptic number.

220581460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220581460 is an abundant number, since it is smaller than the sum of its proper divisors (314485100).

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

220581460 is a wasteful number, since it uses less digits than its factorization.

220581460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59016 (or 59014 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 220581460 is about 14851.9850525107. The cubic root of 220581460 is about 604.2124488388.

The spelling of 220581460 in words is "two hundred twenty million, five hundred eighty-one thousand, four hundred sixty".