394080408 has 48 divisors (see below), whose sum is σ = 1071813600. Its totient is φ = 130804800.

The previous prime is 394080389. The next prime is 394080419. The reversal of 394080408 is 804080493.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5758 + ... + 28658.

It is an arithmetic number, because the mean of its divisors is an integer number (22329450).

Almost surely, 2^394080408 is an apocalyptic number.

It is an amenable number.

394080408 is an abundant number, since it is smaller than the sum of its proper divisors (677733192).

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

394080408 is a wasteful number, since it uses less digits than its factorization.

394080408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23152 (or 23145 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 394080408 is about 19851.4585862097. The cubic root of 394080408 is about 733.1535605246.

It can be divided in two parts, 3940 and 80408, that added together give a palindrome (84348).

The spelling of 394080408 in words is "three hundred ninety-four million, eighty thousand, four hundred eight".