353402220 has 48 divisors (see below), whose sum is σ = 1004306688. Its totient is φ = 92832960.

The previous prime is 353402209. The next prime is 353402249. The reversal of 353402220 is 22204353.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39936 + ... + 47975.

It is an arithmetic number, because the mean of its divisors is an integer number (20923056).

Almost surely, 2^353402220 is an apocalyptic number.

353402220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

353402220 is an abundant number, since it is smaller than the sum of its proper divisors (650904468).

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

353402220 is a wasteful number, since it uses less digits than its factorization.

353402220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87990 (or 87988 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 353402220 is about 18798.9951859135. The cubic root of 353402220 is about 707.0059864239.

Adding to 353402220 its reverse (22204353), we get a palindrome (375606573).

The spelling of 353402220 in words is "three hundred fifty-three million, four hundred two thousand, two hundred twenty".