394898240 has 112 divisors (see below), whose sum is σ = 1050096960. Its totient is φ = 140206080.

The previous prime is 394898227. The next prime is 394898263. The reversal of 394898240 is 42898493.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 150056 + ... + 152664.

Almost surely, 2^394898240 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 394898240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (525048480).

394898240 is an abundant number, since it is smaller than the sum of its proper divisors (655198720).

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

394898240 is a wasteful number, since it uses less digits than its factorization.

394898240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2680 (or 2670 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 47.

The square root of 394898240 is about 19872.0466988179. The cubic root of 394898240 is about 733.6603793775.

The spelling of 394898240 in words is "three hundred ninety-four million, eight hundred ninety-eight thousand, two hundred forty".