6464842 has 8 divisors (see below), whose sum is σ = 9725796. Its totient is φ = 3222912.

The previous prime is 6464831. The next prime is 6464849. The reversal of 6464842 is 2484646.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6056521 + 408321 = 2461^2 + 639^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 6464798 and 6464807.

It is not an unprimeable number, because it can be changed into a prime (6464849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3873 + ... + 5284.

Almost surely, 2^6464842 is an apocalyptic number.

6464842 is a deficient number, since it is larger than the sum of its proper divisors (3260954).

6464842 is a wasteful number, since it uses less digits than its factorization.

6464842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512.

The product of its digits is 36864, while the sum is 34.

The square root of 6464842 is about 2542.6053567158. The cubic root of 6464842 is about 186.2884682490.

The spelling of 6464842 in words is "six million, four hundred sixty-four thousand, eight hundred forty-two".