351285940 has 12 divisors (see below), whose sum is σ = 737700516. Its totient is φ = 140514368.

The previous prime is 351285917. The next prime is 351285967. The reversal of 351285940 is 49582153.

It can be written as a sum of positive squares in 2 ways, for example, as 176464656 + 174821284 = 13284^2 + 13222^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 351285940.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 8782129 + ... + 8782168.

It is an arithmetic number, because the mean of its divisors is an integer number (61475043).

Almost surely, 2^351285940 is an apocalyptic number.

It is an amenable number.

351285940 is an abundant number, since it is smaller than the sum of its proper divisors (386414576).

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

351285940 is a wasteful number, since it uses less digits than its factorization.

351285940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17564306 (or 17564304 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 351285940 is about 18742.6236157055. The cubic root of 351285940 is about 705.5919043648.

The spelling of 351285940 in words is "three hundred fifty-one million, two hundred eighty-five thousand, nine hundred forty".