220305798 has 32 divisors (see below), whose sum is σ = 515337600. Its totient is φ = 69569928.

The previous prime is 220305793. The next prime is 220305803. The reversal of 220305798 is 897503022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220305793) and next prime (220305803).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220305793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106336 + ... + 108387.

It is an arithmetic number, because the mean of its divisors is an integer number (16104300).

Almost surely, 2^220305798 is an apocalyptic number.

220305798 is an abundant number, since it is smaller than the sum of its proper divisors (295031802).

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

220305798 is a wasteful number, since it uses less digits than its factorization.

220305798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214753 (or 214747 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 220305798 is about 14842.7018429934. The cubic root of 220305798 is about 603.9606479193.

The spelling of 220305798 in words is "two hundred twenty million, three hundred five thousand, seven hundred ninety-eight".