394244043 has 16 divisors (see below), whose sum is σ = 534180096. Its totient is φ = 258584480.

The previous prime is 394244041. The next prime is 394244111. The reversal of 394244043 is 340442493.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 394244043 - 2¹ = 394244041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 394243995 and 394244013.

It is not an unprimeable number, because it can be changed into a prime (394244041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116980 + ... + 120302.

It is an arithmetic number, because the mean of its divisors is an integer number (33386256).

Almost surely, 2^394244043 is an apocalyptic number.

394244043 is a deficient number, since it is larger than the sum of its proper divisors (139936053).

394244043 is a wasteful number, since it uses less digits than its factorization.

394244043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3954.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 394244043 is about 19855.5796440195. The cubic root of 394244043 is about 733.2550228820.

The spelling of 394244043 in words is "three hundred ninety-four million, two hundred forty-four thousand, forty-three".