4391352257 has 24 divisors (see below), whose sum is σ = 4905065760. Its totient is φ = 3919354560.

The previous prime is 4391352239. The next prime is 4391352271. The reversal of 4391352257 is 7522531934.

It is not a de Polignac number, because 4391352257 - 2²² = 4387157953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4391352227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670157 + ... + 676677.

It is an arithmetic number, because the mean of its divisors is an integer number (204377740).

Almost surely, 2^4391352257 is an apocalyptic number.

It is an amenable number.

4391352257 is a deficient number, since it is larger than the sum of its proper divisors (513713503).

4391352257 is a wasteful number, since it uses less digits than its factorization.

4391352257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6653 (or 6630 counting only the distinct ones).

The product of its digits is 226800, while the sum is 41.

The square root of 4391352257 is about 66267.2789316115. The cubic root of 4391352257 is about 1637.5683098905.

The spelling of 4391352257 in words is "four billion, three hundred ninety-one million, three hundred fifty-two thousand, two hundred fifty-seven".