352390138 has 8 divisors (see below), whose sum is σ = 529156980. Its totient is φ = 176004480.

The previous prime is 352390123. The next prime is 352390151. The reversal of 352390138 is 831093253.

352390138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 349577809 + 2812329 = 18697^2 + 1677^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 92973 + ... + 96688.

Almost surely, 2^352390138 is an apocalyptic number.

352390138 is a deficient number, since it is larger than the sum of its proper divisors (176766842).

352390138 is a wasteful number, since it uses less digits than its factorization.

352390138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190592.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 352390138 is about 18772.0573725950. The cubic root of 352390138 is about 706.3304273875.

The spelling of 352390138 in words is "three hundred fifty-two million, three hundred ninety thousand, one hundred thirty-eight".