391062441 has 64 divisors (see below), whose sum is σ = 694849536. Its totient is φ = 190967040.

The previous prime is 391062439. The next prime is 391062449. The reversal of 391062441 is 144260193.

It is not a de Polignac number, because 391062441 - 2¹ = 391062439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 391062399 and 391062408.

It is not an unprimeable number, because it can be changed into a prime (391062449) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 474756 + ... + 475578.

It is an arithmetic number, because the mean of its divisors is an integer number (10857024).

Almost surely, 2^391062441 is an apocalyptic number.

It is an amenable number.

391062441 is a deficient number, since it is larger than the sum of its proper divisors (303787095).

391062441 is a wasteful number, since it uses less digits than its factorization.

391062441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 391062441 is about 19775.2987588051. The cubic root of 391062441 is about 731.2772042768.

The spelling of 391062441 in words is "three hundred ninety-one million, sixty-two thousand, four hundred forty-one".