220970478 has 16 divisors (see below), whose sum is σ = 444497616. Its totient is φ = 73230720.

The previous prime is 220970473. The next prime is 220970479. The reversal of 220970478 is 874079022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220970473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105403 + ... + 107478.

It is an arithmetic number, because the mean of its divisors is an integer number (27781101).

Almost surely, 2^220970478 is an apocalyptic number.

220970478 is an abundant number, since it is smaller than the sum of its proper divisors (223527138).

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

220970478 is a wasteful number, since it uses less digits than its factorization.

220970478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213059.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 220970478 is about 14865.0757818452. The cubic root of 220970478 is about 604.5674370831.

The spelling of 220970478 in words is "two hundred twenty million, nine hundred seventy thousand, four hundred seventy-eight".