220936398 has 32 divisors (see below), whose sum is σ = 460065696. Its totient is φ = 70668288.

The previous prime is 220936393. The next prime is 220936423. The reversal of 220936398 is 893639022.

220936398 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220936398² = 97625783922428808, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220936393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9390 + ... + 23022.

It is an arithmetic number, because the mean of its divisors is an integer number (14377053).

Almost surely, 2^220936398 is an apocalyptic number.

220936398 is an abundant number, since it is smaller than the sum of its proper divisors (239129298).

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

220936398 is a wasteful number, since it uses less digits than its factorization.

220936398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13748.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 220936398 is about 14863.9294266355. The cubic root of 220936398 is about 604.5363549257.

The spelling of 220936398 in words is "two hundred twenty million, nine hundred thirty-six thousand, three hundred ninety-eight".