394014438 has 48 divisors (see below), whose sum is σ = 900918720. Its totient is φ = 124108848.

The previous prime is 394014431. The next prime is 394014497. The reversal of 394014438 is 834410493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394014431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158481 + ... + 160947.

It is an arithmetic number, because the mean of its divisors is an integer number (18769140).

Almost surely, 2^394014438 is an apocalyptic number.

394014438 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 394014438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450459360).

394014438 is an abundant number, since it is smaller than the sum of its proper divisors (506904282).

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

394014438 is a wasteful number, since it uses less digits than its factorization.

394014438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961 (or 2958 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 394014438 is about 19849.7969259134. The cubic root of 394014438 is about 733.1126476901.

The spelling of 394014438 in words is "three hundred ninety-four million, fourteen thousand, four hundred thirty-eight".