64257441 has 8 divisors (see below), whose sum is σ = 85722144. Its totient is φ = 42815520.

The previous prime is 64257409. The next prime is 64257463. The reversal of 64257441 is 14475246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64257441 - 2⁵ = 64257409 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (64257481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2626 + ... + 11636.

It is an arithmetic number, because the mean of its divisors is an integer number (10715268).

Almost surely, 2^64257441 is an apocalyptic number.

It is an amenable number.

64257441 is a deficient number, since it is larger than the sum of its proper divisors (21464703).

64257441 is a wasteful number, since it uses less digits than its factorization.

64257441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11391.

The product of its digits is 26880, while the sum is 33.

The square root of 64257441 is about 8016.0739143299. The cubic root of 64257441 is about 400.5356178803.

The spelling of 64257441 in words is "sixty-four million, two hundred fifty-seven thousand, four hundred forty-one".