220678904 has 16 divisors (see below), whose sum is σ = 438112800. Its totient is φ = 103848832.

The previous prime is 220678903. The next prime is 220678937. The reversal of 220678904 is 409876022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220678903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 811184 + ... + 811455.

It is an arithmetic number, because the mean of its divisors is an integer number (27382050).

Almost surely, 2^220678904 is an apocalyptic number.

It is an amenable number.

220678904 is a deficient number, since it is larger than the sum of its proper divisors (217433896).

220678904 is a wasteful number, since it uses less digits than its factorization.

220678904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622662 (or 1622658 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 220678904 is about 14855.2651945362. The cubic root of 220678904 is about 604.3014079776.

The spelling of 220678904 in words is "two hundred twenty million, six hundred seventy-eight thousand, nine hundred four".