394834674 has 64 divisors (see below), whose sum is σ = 876129408. Its totient is φ = 117849600.

The previous prime is 394834663. The next prime is 394834679. The reversal of 394834674 is 476438493.

It is not an unprimeable number, because it can be changed into a prime (394834679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1058352 + ... + 1058724.

It is an arithmetic number, because the mean of its divisors is an integer number (13689522).

Almost surely, 2^394834674 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394834674, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438064704).

394834674 is an abundant number, since it is smaller than the sum of its proper divisors (481294734).

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

394834674 is a wasteful number, since it uses less digits than its factorization.

394834674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763.

The product of its digits is 1741824, while the sum is 48.

The square root of 394834674 is about 19870.4472521380. The cubic root of 394834674 is about 733.6210119714.

The spelling of 394834674 in words is "three hundred ninety-four million, eight hundred thirty-four thousand, six hundred seventy-four".