220421082 has 32 divisors (see below), whose sum is σ = 533457792. Its totient is φ = 59272704.

The previous prime is 220421041. The next prime is 220421107. The reversal of 220421082 is 280124022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 153643 + ... + 155070.

It is an arithmetic number, because the mean of its divisors is an integer number (16670556).

Almost surely, 2^220421082 is an apocalyptic number.

220421082 is an abundant number, since it is smaller than the sum of its proper divisors (313036710).

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

220421082 is a wasteful number, since it uses less digits than its factorization.

220421082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308742.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 220421082 is about 14846.5848598255. The cubic root of 220421082 is about 604.0659785680.

The spelling of 220421082 in words is "two hundred twenty million, four hundred twenty-one thousand, eighty-two".