220231332 has 24 divisors (see below), whose sum is σ = 570970400. Its totient is φ = 73410408.

The previous prime is 220231327. The next prime is 220231351. The reversal of 220231332 is 233132022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1019482 + ... + 1019697.

Almost surely, 2^220231332 is an apocalyptic number.

It is an amenable number.

220231332 is an abundant number, since it is smaller than the sum of its proper divisors (350739068).

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

220231332 is a wasteful number, since it uses less digits than its factorization.

220231332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039192 (or 2039184 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 220231332 is about 14840.1931254280. The cubic root of 220231332 is about 603.8925916051.

Adding to 220231332 its reverse (233132022), we get a palindrome (453363354).

The spelling of 220231332 in words is "two hundred twenty million, two hundred thirty-one thousand, three hundred thirty-two".