220531484 has 6 divisors (see below), whose sum is σ = 385930104. Its totient is φ = 110265740.

The previous prime is 220531483. The next prime is 220531523. The reversal of 220531484 is 484135022.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220531483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27566432 + ... + 27566439.

It is an arithmetic number, because the mean of its divisors is an integer number (64321684).

Almost surely, 2^220531484 is an apocalyptic number.

It is an amenable number.

220531484 is a deficient number, since it is larger than the sum of its proper divisors (165398620).

220531484 is a wasteful number, since it uses less digits than its factorization.

220531484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55132875 (or 55132873 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 220531484 is about 14850.3024885017. The cubic root of 220531484 is about 604.1668142962.

The spelling of 220531484 in words is "two hundred twenty million, five hundred thirty-one thousand, four hundred eighty-four".