42864481 has 8 divisors (see below), whose sum is σ = 46810944. Its totient is φ = 38926320.

The previous prime is 42864473. The next prime is 42864491. The reversal of 42864481 is 18446824.

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 42864481 - 2³ = 42864473 is a prime.

It is a super-2 number, since 2×42864481² = 3674727462798722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42864481.

It is not an unprimeable number, because it can be changed into a prime (42864491) 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, 14571 + ... + 17263.

It is an arithmetic number, because the mean of its divisors is an integer number (5851368).

Almost surely, 2^42864481 is an apocalyptic number.

It is an amenable number.

42864481 is a deficient number, since it is larger than the sum of its proper divisors (3946463).

42864481 is a wasteful number, since it uses less digits than its factorization.

42864481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4151.

The product of its digits is 49152, while the sum is 37.

The square root of 42864481 is about 6547.0971430093. The cubic root of 42864481 is about 349.9713745296.

The spelling of 42864481 in words is "forty-two million, eight hundred sixty-four thousand, four hundred eighty-one".