220302628 has 36 divisors (see below), whose sum is σ = 482976732. Its totient is φ = 87151680.

The previous prime is 220302623. The next prime is 220302673. The reversal of 220302628 is 826203022.

It can be written as a sum of positive squares in 2 ways, for example, as 149035264 + 71267364 = 12208^2 + 8442^2 .

It is not an unprimeable number, because it can be changed into a prime (220302623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40683 + ... + 45778.

Almost surely, 2^220302628 is an apocalyptic number.

220302628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

220302628 is an abundant number, since it is smaller than the sum of its proper divisors (262674104).

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

220302628 is a wasteful number, since it uses less digits than its factorization.

220302628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86492 (or 86483 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 220302628 is about 14842.5950561214. The cubic root of 220302628 is about 603.9577510907.

The spelling of 220302628 in words is "two hundred twenty million, three hundred two thousand, six hundred twenty-eight".