351994 has 16 divisors (see below), whose sum is σ = 568800. Its totient is φ = 162864.

The previous prime is 351991. The next prime is 352007. The reversal of 351994 is 499153.

351994 = 127² + 128² + ... + 145².

It is not an unprimeable number, because it can be changed into a prime (351991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2164 + ... + 2320.

It is an arithmetic number, because the mean of its divisors is an integer number (35550).

2³⁵¹⁹⁹⁴ is an apocalyptic number.

351994 is a deficient number, since it is larger than the sum of its proper divisors (216806).

351994 is a wasteful number, since it uses less digits than its factorization.

351994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237.

The product of its digits is 4860, while the sum is 31.

The square root of 351994 is about 593.2908224471. The cubic root of 351994 is about 70.6065655283.

The spelling of 351994 in words is "three hundred fifty-one thousand, nine hundred ninety-four".