394127748 has 96 divisors (see below), whose sum is σ = 1208121600. Its totient is φ = 108718848.

The previous prime is 394127731. The next prime is 394127807. The reversal of 394127748 is 847721493.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12936 + ... + 30912.

It is an arithmetic number, because the mean of its divisors is an integer number (12584600).

Almost surely, 2^394127748 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 394127748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604060800).

394127748 is an abundant number, since it is smaller than the sum of its proper divisors (813993852).

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

394127748 is a wasteful number, since it uses less digits than its factorization.

394127748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18026 (or 18018 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 394127748 is about 19852.6509061133. The cubic root of 394127748 is about 733.1829167162.

The spelling of 394127748 in words is "three hundred ninety-four million, one hundred twenty-seven thousand, seven hundred forty-eight".