394402032 has 60 divisors (see below), whose sum is σ = 1106718600. Its totient is φ = 131117184.

The previous prime is 394402013. The next prime is 394402033. The reversal of 394402032 is 230204493.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 394401987 and 394402005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394402033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53719 + ... + 60617.

It is an arithmetic number, because the mean of its divisors is an integer number (18445310).

Almost surely, 2^394402032 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 394402032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553359300).

394402032 is an abundant number, since it is smaller than the sum of its proper divisors (712316568).

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

394402032 is a wasteful number, since it uses less digits than its factorization.

394402032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7310 (or 7301 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 394402032 is about 19859.5576990023. The cubic root of 394402032 is about 733.3529577852.

The spelling of 394402032 in words is "three hundred ninety-four million, four hundred two thousand, thirty-two".