64842064 has 40 divisors (see below), whose sum is σ = 145738688. Its totient is φ = 27371520.

The previous prime is 64842059. The next prime is 64842073. The reversal of 64842064 is 46024846.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3184 + ... + 11824.

Almost surely, 2^64842064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64842064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72869344).

64842064 is an abundant number, since it is smaller than the sum of its proper divisors (80896624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64842064 is a wasteful number, since it uses less digits than its factorization.

64842064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8723 (or 8717 counting only the distinct ones).

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

The square root of 64842064 is about 8052.4570163398. The cubic root of 64842064 is about 401.7466618295.

The spelling of 64842064 in words is "sixty-four million, eight hundred forty-two thousand, sixty-four".