64240896 has 72 divisors (see below), whose sum is σ = 172186560. Its totient is φ = 21262336.

The previous prime is 64240877. The next prime is 64240901. The reversal of 64240896 is 69804246.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178765 + ... + 179123.

It is an arithmetic number, because the mean of its divisors is an integer number (2391480).

Almost surely, 2^64240896 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 64240896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86093280).

64240896 is an abundant number, since it is smaller than the sum of its proper divisors (107945664).

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

64240896 is a wasteful number, since it uses less digits than its factorization.

64240896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 64240896 is about 8015.0418589050. The cubic root of 64240896 is about 400.5012383047.

The spelling of 64240896 in words is "sixty-four million, two hundred forty thousand, eight hundred ninety-six".