394729104 has 360 divisors, whose sum is σ = 1391265120. Its totient is φ = 95800320.

The previous prime is 394729087. The next prime is 394729141. The reversal of 394729104 is 401927493.

It is a super-2 number, since 2×394729104² = 311622131089285632, which contains 22 as substring.

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 71 ways as a sum of consecutive naturals, for example, 5407212 + ... + 5407284.

Almost surely, 2^394729104 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 394729104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (695632560).

394729104 is an abundant number, since it is smaller than the sum of its proper divisors (996536016).

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

394729104 is a wasteful number, since it uses less digits than its factorization.

394729104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 115 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 394729104 is about 19867.7906169760. The cubic root of 394729104 is about 733.5556215020. Note that the first 3 decimals are identical.

The spelling of 394729104 in words is "three hundred ninety-four million, seven hundred twenty-nine thousand, one hundred four".