394260736 has 81 divisors (see below), whose sum is σ = 847606431. Its totient is φ = 182992896.

The previous prime is 394260701. The next prime is 394260743. The reversal of 394260736 is 637062493.

The square root of 394260736 is 19856.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 49787136 + 344473600 = 7056^2 + 18560^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5400796 + ... + 5400868.

Almost surely, 2^394260736 is an apocalyptic number.

394260736 is the 19856-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394260736

394260736 is an abundant number, since it is smaller than the sum of its proper divisors (453345695).

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

394260736 is an frugal number, since it uses more digits than its factorization.

394260736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 92 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 40.

The cubic root of 394260736 is about 733.2653718470.

The spelling of 394260736 in words is "three hundred ninety-four million, two hundred sixty thousand, seven hundred thirty-six".