394391298 has 24 divisors (see below), whose sum is σ = 917564112. Its totient is φ = 112683144.

The previous prime is 394391293. The next prime is 394391299. The reversal of 394391298 is 892193493.

It is not an unprimeable number, because it can be changed into a prime (394391293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670440 + ... + 671027.

It is an arithmetic number, because the mean of its divisors is an integer number (38231838).

Almost surely, 2^394391298 is an apocalyptic number.

394391298 is an abundant number, since it is smaller than the sum of its proper divisors (523172814).

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

394391298 is a wasteful number, since it uses less digits than its factorization.

394391298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341486 (or 1341479 counting only the distinct ones).

The product of its digits is 419904, while the sum is 48.

The square root of 394391298 is about 19859.2874494530. The cubic root of 394391298 is about 733.3463047751.

The spelling of 394391298 in words is "three hundred ninety-four million, three hundred ninety-one thousand, two hundred ninety-eight".