220678704 has 120 divisors (see below), whose sum is σ = 636320880. Its totient is φ = 71368704.

The previous prime is 220678699. The next prime is 220678741. The reversal of 220678704 is 407876022.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 858544 + ... + 858800.

It is an arithmetic number, because the mean of its divisors is an integer number (5302674).

Almost surely, 2^220678704 is an apocalyptic number.

220678704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220678704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (318160440).

220678704 is an abundant number, since it is smaller than the sum of its proper divisors (415642176).

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

220678704 is a wasteful number, since it uses less digits than its factorization.

220678704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 220678704 is about 14855.2584629147. The cubic root of 220678704 is about 604.3012254193.

The spelling of 220678704 in words is "two hundred twenty million, six hundred seventy-eight thousand, seven hundred four".