391414444 has 6 divisors (see below), whose sum is σ = 684975284. Its totient is φ = 195707220.

The previous prime is 391414399. The next prime is 391414481. The reversal of 391414444 is 444414193.

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 as a sum of consecutive naturals, namely, 48926802 + ... + 48926809.

Almost surely, 2^391414444 is an apocalyptic number.

It is an amenable number.

391414444 is a deficient number, since it is larger than the sum of its proper divisors (293560840).

391414444 is a wasteful number, since it uses less digits than its factorization.

391414444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97853615 (or 97853613 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 391414444 is about 19784.1968247387. The cubic root of 391414444 is about 731.4965508121.

The spelling of 391414444 in words is "three hundred ninety-one million, four hundred fourteen thousand, four hundred forty-four".