220492878 has 8 divisors (see below), whose sum is σ = 440985768. Its totient is φ = 73497624.

The previous prime is 220492861. The next prime is 220492919. The reversal of 220492878 is 878294022.

It is a sphenic number, since it is the product of 3 distinct primes.

220492878 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 18374401 + ... + 18374412.

It is an arithmetic number, because the mean of its divisors is an integer number (55123221).

Almost surely, 2^220492878 is an apocalyptic number.

220492878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

220492878 is a wasteful number, since it uses less digits than its factorization.

220492878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36748818.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 220492878 is about 14849.0025927670. The cubic root of 220492878 is about 604.1315573119.

The spelling of 220492878 in words is "two hundred twenty million, four hundred ninety-two thousand, eight hundred seventy-eight".