351225320 has 32 divisors (see below), whose sum is σ = 790921800. Its totient is φ = 140371968.

The previous prime is 351225299. The next prime is 351225331. The reversal of 351225320 is 23522153.

It can be written as a sum of positive squares in 4 ways, for example, as 306040036 + 45185284 = 17494^2 + 6722^2 .

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, 56612 + ... + 62508.

Almost surely, 2^351225320 is an apocalyptic number.

It is an amenable number.

351225320 is an abundant number, since it is smaller than the sum of its proper divisors (439696480).

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

351225320 is a wasteful number, since it uses less digits than its factorization.

351225320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7397 (or 7393 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 351225320 is about 18741.0063763929. The cubic root of 351225320 is about 705.5513149788.

Adding to 351225320 its reverse (23522153), we get a palindrome (374747473).

The spelling of 351225320 in words is "three hundred fifty-one million, two hundred twenty-five thousand, three hundred twenty".