220497938 has 16 divisors (see below), whose sum is σ = 338161824. Its totient is φ = 107801760.

The previous prime is 220497929. The next prime is 220497961. The reversal of 220497938 is 839794022.

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, 12353 + ... + 24363.

It is an arithmetic number, because the mean of its divisors is an integer number (21135114).

Almost surely, 2^220497938 is an apocalyptic number.

220497938 is a deficient number, since it is larger than the sum of its proper divisors (117663886).

220497938 is a wasteful number, since it uses less digits than its factorization.

220497938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12217.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 220497938 is about 14849.1729736036. The cubic root of 220497938 is about 604.1361785984.

The spelling of 220497938 in words is "two hundred twenty million, four hundred ninety-seven thousand, nine hundred thirty-eight".