351940868 has 24 divisors (see below), whose sum is σ = 674616600. Its totient is φ = 159907328.

The previous prime is 351940859. The next prime is 351940877. The reversal of 351940868 is 868049153.

It is an interprime number because it is at equal distance from previous prime (351940859) and next prime (351940877).

It can be written as a sum of positive squares in 4 ways, for example, as 13675204 + 338265664 = 3698^2 + 18392^2 .

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, 87263 + ... + 91206.

It is an arithmetic number, because the mean of its divisors is an integer number (28109025).

Almost surely, 2^351940868 is an apocalyptic number.

It is an amenable number.

351940868 is a deficient number, since it is larger than the sum of its proper divisors (322675732).

351940868 is a wasteful number, since it uses less digits than its factorization.

351940868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178519 (or 178517 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 351940868 is about 18760.0871000110. The cubic root of 351940868 is about 706.0301276242.

The spelling of 351940868 in words is "three hundred fifty-one million, nine hundred forty thousand, eight hundred sixty-eight".