394919941 has 8 divisors (see below), whose sum is σ = 439964280. Its totient is φ = 351970752.

The previous prime is 394919933. The next prime is 394919957. The reversal of 394919941 is 149919493.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 53963716 + 340956225 = 7346^2 + 18465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 394919941 - 2³ = 394919933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394913941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523390 + ... + 524143.

It is an arithmetic number, because the mean of its divisors is an integer number (54995535).

Almost surely, 2^394919941 is an apocalyptic number.

It is an amenable number.

394919941 is a deficient number, since it is larger than the sum of its proper divisors (45044339).

394919941 is a wasteful number, since it uses less digits than its factorization.

394919941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047575.

The product of its digits is 314928, while the sum is 49.

The square root of 394919941 is about 19872.5927095586. The cubic root of 394919941 is about 733.6738181749.

The spelling of 394919941 in words is "three hundred ninety-four million, nine hundred nineteen thousand, nine hundred forty-one".