394268736 has 56 divisors (see below), whose sum is σ = 1058773600. Its totient is φ = 129457152.

The previous prime is 394268731. The next prime is 394268747. The reversal of 394268736 is 637862493.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (394268731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2461 + ... + 28188.

Almost surely, 2^394268736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394268736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529386800).

394268736 is an abundant number, since it is smaller than the sum of its proper divisors (664504864).

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

394268736 is a wasteful number, since it uses less digits than its factorization.

394268736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30731 (or 30721 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 48.

The square root of 394268736 is about 19856.2014494213. The cubic root of 394268736 is about 733.2703314103.

The spelling of 394268736 in words is "three hundred ninety-four million, two hundred sixty-eight thousand, seven hundred thirty-six".