351349940 has 12 divisors (see below), whose sum is σ = 737834916. Its totient is φ = 140539968.

The previous prime is 351349937. The next prime is 351349963. The reversal of 351349940 is 49943153.

It can be written as a sum of positive squares in 2 ways, for example, as 67831696 + 283518244 = 8236^2 + 16838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 351349894 and 351349903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8783729 + ... + 8783768.

It is an arithmetic number, because the mean of its divisors is an integer number (61486243).

Almost surely, 2^351349940 is an apocalyptic number.

It is an amenable number.

351349940 is an abundant number, since it is smaller than the sum of its proper divisors (386484976).

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

351349940 is a wasteful number, since it uses less digits than its factorization.

351349940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17567506 (or 17567504 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 351349940 is about 18744.3308762943. The cubic root of 351349940 is about 705.6347518333.

The spelling of 351349940 in words is "three hundred fifty-one million, three hundred forty-nine thousand, nine hundred forty".