220746678 has 16 divisors (see below), whose sum is σ = 448731696. Its totient is φ = 72375840.

The previous prime is 220746653. The next prime is 220746703. The reversal of 220746678 is 876647022.

220746678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220746653) and next prime (220746703).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301201 + ... + 301932.

It is an arithmetic number, because the mean of its divisors is an integer number (28045731).

Almost surely, 2^220746678 is an apocalyptic number.

220746678 is an abundant number, since it is smaller than the sum of its proper divisors (227985018).

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

220746678 is a wasteful number, since it uses less digits than its factorization.

220746678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603199.

The product of its (nonzero) digits is 225792, while the sum is 42.

The square root of 220746678 is about 14857.5461634820. The cubic root of 220746678 is about 604.3632651690.

The spelling of 220746678 in words is "two hundred twenty million, seven hundred forty-six thousand, six hundred seventy-eight".