394244931 has 8 divisors (see below), whose sum is σ = 525752064. Its totient is φ = 262783880.

The previous prime is 394244897. The next prime is 394244987. The reversal of 394244931 is 139442493.

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 394244931 - 2⁶ = 394244867 is a prime.

It is a super-2 number, since 2×394244931² = 310858131238389522, 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 394244931.

It is not an unprimeable number, because it can be changed into a prime (394244831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24850 + ... + 37496.

It is an arithmetic number, because the mean of its divisors is an integer number (65719008).

Almost surely, 2^394244931 is an apocalyptic number.

394244931 is a deficient number, since it is larger than the sum of its proper divisors (131507133).

394244931 is a wasteful number, since it uses less digits than its factorization.

394244931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23041.

The product of its digits is 93312, while the sum is 39.

The square root of 394244931 is about 19855.6020054795. The cubic root of 394244931 is about 733.2555734124.

The spelling of 394244931 in words is "three hundred ninety-four million, two hundred forty-four thousand, nine hundred thirty-one".