64845288 has 48 divisors (see below), whose sum is σ = 178946820. Its totient is φ = 21206016.

The previous prime is 64845283. The next prime is 64845301. The reversal of 64845288 is 88254846.

It can be written as a sum of positive squares in 2 ways, for example, as 64352484 + 492804 = 8022^2 + 702^2 .

It is a super-2 number, since 2×64845288² = 8409822751605888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64845283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4681 + ... + 12312.

Almost surely, 2^64845288 is an apocalyptic number.

It is an amenable number.

64845288 is an abundant number, since it is smaller than the sum of its proper divisors (114101532).

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

64845288 is a wasteful number, since it uses less digits than its factorization.

64845288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17058 (or 17051 counting only the distinct ones).

The product of its digits is 491520, while the sum is 45.

The square root of 64845288 is about 8052.6572011976. The cubic root of 64845288 is about 401.7533201091.

The spelling of 64845288 in words is "sixty-four million, eight hundred forty-five thousand, two hundred eighty-eight".