351960138 has 24 divisors (see below), whose sum is σ = 765425700. Its totient is φ = 116882304.

The previous prime is 351960137. The next prime is 351960151. The reversal of 351960138 is 831069153.

It is a happy number.

351960138 is a `hidden beast` number, since 3 + 5 + 19 + 601 + 38 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 269386569 + 82573569 = 16413^2 + 9087^2 .

It is not an unprimeable number, because it can be changed into a prime (351960137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31503 + ... + 41186.

Almost surely, 2^351960138 is an apocalyptic number.

351960138 is an abundant number, since it is smaller than the sum of its proper divisors (413465562).

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

351960138 is a wasteful number, since it uses less digits than its factorization.

351960138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72966 (or 72963 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 351960138 is about 18760.6006833470. The cubic root of 351960138 is about 706.0430132664.

The spelling of 351960138 in words is "three hundred fifty-one million, nine hundred sixty thousand, one hundred thirty-eight".