220878894 has 32 divisors (see below), whose sum is σ = 448874496. Its totient is φ = 72449280.

The previous prime is 220878883. The next prime is 220878997. The reversal of 220878894 is 498878022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110169 + ... + 112155.

It is an arithmetic number, because the mean of its divisors is an integer number (14027328).

Almost surely, 2^220878894 is an apocalyptic number.

220878894 is an abundant number, since it is smaller than the sum of its proper divisors (227995602).

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

220878894 is a wasteful number, since it uses less digits than its factorization.

220878894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2280.

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 220878894 is about 14861.9949535720. The cubic root of 220878894 is about 604.4839020097.

The spelling of 220878894 in words is "two hundred twenty million, eight hundred seventy-eight thousand, eight hundred ninety-four".