394369392 has 60 divisors (see below), whose sum is σ = 1038318216. Its totient is φ = 128949120.

The previous prime is 394369379. The next prime is 394369397. The reversal of 394369392 is 293963493.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394369397) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1074393 + ... + 1074759.

Almost surely, 2^394369392 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 394369392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (519159108).

394369392 is an abundant number, since it is smaller than the sum of its proper divisors (643948824).

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

394369392 is an equidigital number, since it uses as much as digits as its factorization.

394369392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806 (or 433 counting only the distinct ones).

The product of its digits is 944784, while the sum is 48.

The square root of 394369392 is about 19858.7359114320. The cubic root of 394369392 is about 733.3327269049.

It can be divided in two parts, 39436 and 9392, that added together give a triangular number (48828 = T₃₁₂).

The spelling of 394369392 in words is "three hundred ninety-four million, three hundred sixty-nine thousand, three hundred ninety-two".