351849940 has 24 divisors (see below), whose sum is σ = 795722760. Its totient is φ = 129913728.

The previous prime is 351849877. The next prime is 351849977. The reversal of 351849940 is 49948153.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 72692676 + 279157264 = 8526^2 + 16708^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 676375 + ... + 676894.

It is an arithmetic number, because the mean of its divisors is an integer number (33155115).

Almost surely, 2^351849940 is an apocalyptic number.

It is an amenable number.

351849940 is an abundant number, since it is smaller than the sum of its proper divisors (443872820).

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

351849940 is a wasteful number, since it uses less digits than its factorization.

351849940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353291 (or 1353289 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 351849940 is about 18757.6635005536. The cubic root of 351849940 is about 705.9693186997.

The spelling of 351849940 in words is "three hundred fifty-one million, eight hundred forty-nine thousand, nine hundred forty".