394370944 has 48 divisors (see below), whose sum is σ = 863611560. Its totient is φ = 179252480.

The previous prime is 394370891. The next prime is 394370953. The reversal of 394370944 is 449073493.

It is a super-2 number, since 2×394370944² = 311056882942902272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 394370944.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2757 + ... + 28219.

Almost surely, 2^394370944 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 394370944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431805780).

394370944 is an abundant number, since it is smaller than the sum of its proper divisors (469240616).

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

394370944 is a wasteful number, since it uses less digits than its factorization.

394370944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25499 (or 25476 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 394370944 is about 19858.7749873954. The cubic root of 394370944 is about 733.3336888887. Note that the first 3 decimals are identical.

The spelling of 394370944 in words is "three hundred ninety-four million, three hundred seventy thousand, nine hundred forty-four".