64385496 has 128 divisors (see below), whose sum is σ = 206976000. Its totient is φ = 18164736.

The previous prime is 64385473. The next prime is 64385521. The reversal of 64385496 is 69458346.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146445 + ... + 146883.

It is an arithmetic number, because the mean of its divisors is an integer number (1617000).

Almost surely, 2^64385496 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 64385496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103488000).

64385496 is an abundant number, since it is smaller than the sum of its proper divisors (142590504).

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

64385496 is a wasteful number, since it uses less digits than its factorization.

64385496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558 (or 548 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 64385496 is about 8024.0573278112. The cubic root of 64385496 is about 400.8015095501.

The spelling of 64385496 in words is "sixty-four million, three hundred eighty-five thousand, four hundred ninety-six".