355947138 has 12 divisors (see below), whose sum is σ = 771218838. Its totient is φ = 118649040.

The previous prime is 355947127. The next prime is 355947157. The reversal of 355947138 is 831749553.

It can be written as a sum of positive squares in only one way, i.e., 346965129 + 8982009 = 18627^2 + 2997^2 .

It is a junction number, because it is equal to n+sod(n) for n = 355947093 and 355947102.

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 5 ways as a sum of consecutive naturals, for example, 9887403 + ... + 9887438.

Almost surely, 2^355947138 is an apocalyptic number.

355947138 is an abundant number, since it is smaller than the sum of its proper divisors (415271700).

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

355947138 is a wasteful number, since it uses less digits than its factorization.

355947138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19774849 (or 19774846 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The square root of 355947138 is about 18866.5613719088. The cubic root of 355947138 is about 708.6990247298.

The spelling of 355947138 in words is "three hundred fifty-five million, nine hundred forty-seven thousand, one hundred thirty-eight".