351940 has 12 divisors (see below), whose sum is σ = 739116. Its totient is φ = 140768.

The previous prime is 351931. The next prime is 351959. The reversal of 351940 is 49153.

It can be written as a sum of positive squares in 2 ways, for example, as 53824 + 298116 = 232^2 + 546^2 .

It is an unprimeable number.

351940 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8779 + ... + 8818.

It is an arithmetic number, because the mean of its divisors is an integer number (61593).

2³⁵¹⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

351940 is an abundant number, since it is smaller than the sum of its proper divisors (387176).

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

351940 is a wasteful number, since it uses less digits than its factorization.

351940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17606 (or 17604 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 351940 is about 593.2453118230. The cubic root of 351940 is about 70.6029547191.

The spelling of 351940 in words is "three hundred fifty-one thousand, nine hundred forty".