351899340 has 192 divisors, whose sum is σ = 1124444160. Its totient is φ = 81607680.

The previous prime is 351899281. The next prime is 351899357. The reversal of 351899340 is 43998153.

It is a junction number, because it is equal to n+sod(n) for n = 351899292 and 351899301.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1062975 + ... + 1063305.

It is an arithmetic number, because the mean of its divisors is an integer number (5856480).

Almost surely, 2^351899340 is an apocalyptic number.

351899340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 351899340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (562222080).

351899340 is an abundant number, since it is smaller than the sum of its proper divisors (772544820).

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

351899340 is a wasteful number, since it uses less digits than its factorization.

351899340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 351899340 is about 18758.9802494699. The cubic root of 351899340 is about 706.0023566972.

The spelling of 351899340 in words is "three hundred fifty-one million, eight hundred ninety-nine thousand, three hundred forty".