394836356 has 24 divisors (see below), whose sum is σ = 732314520. Its totient is φ = 185626112.

The previous prime is 394836349. The next prime is 394836383. The reversal of 394836356 is 653638493.

It can be written as a sum of positive squares in 4 ways, for example, as 353440000 + 41396356 = 18800^2 + 6434^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 394836356.

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 7 ways as a sum of consecutive naturals, for example, 91250 + ... + 95478.

It is an arithmetic number, because the mean of its divisors is an integer number (30513105).

Almost surely, 2^394836356 is an apocalyptic number.

It is an amenable number.

394836356 is a deficient number, since it is larger than the sum of its proper divisors (337478164).

394836356 is a wasteful number, since it uses less digits than its factorization.

394836356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5623 (or 5621 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 47.

The square root of 394836356 is about 19870.4895762535. The cubic root of 394836356 is about 733.6220537144.

It can be divided in two parts, 3948 and 36356, that added together give a palindrome (40304).

The spelling of 394836356 in words is "three hundred ninety-four million, eight hundred thirty-six thousand, three hundred fifty-six".