220523402 has 16 divisors (see below), whose sum is σ = 376546752. Its totient is φ = 95879520.

The previous prime is 220523377. The next prime is 220523417. The reversal of 220523402 is 204325022.

220523402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 217403 + ... + 218414.

It is an arithmetic number, because the mean of its divisors is an integer number (23534172).

Almost surely, 2^220523402 is an apocalyptic number.

220523402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

220523402 is a deficient number, since it is larger than the sum of its proper divisors (156023350).

220523402 is a wasteful number, since it uses less digits than its factorization.

220523402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435853.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 220523402 is about 14850.0303703393. The cubic root of 220523402 is about 604.1594337387.

Adding to 220523402 its reverse (204325022), we get a palindrome (424848424).

The spelling of 220523402 in words is "two hundred twenty million, five hundred twenty-three thousand, four hundred two".