356409138 has 16 divisors (see below), whose sum is σ = 721407456. Its totient is φ = 117371520.

The previous prime is 356409121. The next prime is 356409143. The reversal of 356409138 is 831904653.

It is a junction number, because it is equal to n+sod(n) for n = 356409096 and 356409105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 357343 + ... + 358338.

It is an arithmetic number, because the mean of its divisors is an integer number (45087966).

Almost surely, 2^356409138 is an apocalyptic number.

356409138 is an abundant number, since it is smaller than the sum of its proper divisors (364998318).

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

356409138 is a wasteful number, since it uses less digits than its factorization.

356409138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715769.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 356409138 is about 18878.8012860986. The cubic root of 356409138 is about 709.0055097470.

The spelling of 356409138 in words is "three hundred fifty-six million, four hundred nine thousand, one hundred thirty-eight".