394342344 has 144 divisors (see below), whose sum is σ = 1211623920. Its totient is φ = 119322720.

The previous prime is 394342343. The next prime is 394342363. The reversal of 394342344 is 443243493.

It is a happy number.

394342344 is a `hidden beast` number, since 394 + 34 + 234 + 4 = 666.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 394342299 and 394342308.

It is not an unprimeable number, because it can be changed into a prime (394342343) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 577027 + ... + 577709.

It is an arithmetic number, because the mean of its divisors is an integer number (8414055).

Almost surely, 2^394342344 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 394342344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605811960).

394342344 is an abundant number, since it is smaller than the sum of its proper divisors (817281576).

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

394342344 is an equidigital number, since it uses as much as digits as its factorization.

394342344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 699 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

The square root of 394342344 is about 19858.0548896411. The cubic root of 394342344 is about 733.3159612046.

The spelling of 394342344 in words is "three hundred ninety-four million, three hundred forty-two thousand, three hundred forty-four".