351220304 has 40 divisors (see below), whose sum is σ = 714716160. Its totient is φ = 166877568.

The previous prime is 351220283. The next prime is 351220319. The reversal of 351220304 is 403022153.

It is a happy number.

It is a congruent number.

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, 54737 + ... + 60815.

It is an arithmetic number, because the mean of its divisors is an integer number (17867904).

Almost surely, 2^351220304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 351220304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (357358080).

351220304 is an abundant number, since it is smaller than the sum of its proper divisors (363495856).

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

351220304 is a wasteful number, since it uses less digits than its factorization.

351220304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6267 (or 6261 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 351220304 is about 18740.8725517250. The cubic root of 351220304 is about 705.5479562021.

Adding to 351220304 its reverse (403022153), we get a palindrome (754242457).

The spelling of 351220304 in words is "three hundred fifty-one million, two hundred twenty thousand, three hundred four".