220394432 has 28 divisors (see below), whose sum is σ = 452429880. Its totient is φ = 106396416.

The previous prime is 220394429. The next prime is 220394483. The reversal of 220394432 is 234493022.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 220394395 and 220394404.

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, 57518 + ... + 61229.

It is an arithmetic number, because the mean of its divisors is an integer number (16158210).

Almost surely, 2^220394432 is an apocalyptic number.

It is an amenable number.

220394432 is an abundant number, since it is smaller than the sum of its proper divisors (232035448).

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

220394432 is a wasteful number, since it uses less digits than its factorization.

220394432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118788 (or 118778 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 220394432 is about 14845.6873198919. The cubic root of 220394432 is about 604.0416327310.

The spelling of 220394432 in words is "two hundred twenty million, three hundred ninety-four thousand, four hundred thirty-two".