394079424 has 112 divisors (see below), whose sum is σ = 1095524352. Its totient is φ = 124782592.

The previous prime is 394079407. The next prime is 394079453. The reversal of 394079424 is 424970493.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028737 + ... + 1029119.

Almost surely, 2^394079424 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 394079424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547762176).

394079424 is an abundant number, since it is smaller than the sum of its proper divisors (701444928).

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

394079424 is a wasteful number, since it uses less digits than its factorization.

394079424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 394079424 is about 19851.4338021212. The cubic root of 394079424 is about 733.1529503076.

The spelling of 394079424 in words is "three hundred ninety-four million, seventy-nine thousand, four hundred twenty-four".