64243024 has 10 divisors (see below), whose sum is σ = 124470890. Its totient is φ = 32121504.

The previous prime is 64243021. The next prime is 64243073. The reversal of 64243024 is 42034246.

It can be written as a sum of positive squares in only one way, i.e., 33640000 + 30603024 = 5800^2 + 5532^2 .

It is a super-5 number, since 5×64243024⁵ (a number of 40 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 64243024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64243021) by changing a digit.

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 as a sum of consecutive naturals, namely, 2007579 + ... + 2007610.

It is an arithmetic number, because the mean of its divisors is an integer number (12447089).

Almost surely, 2^64243024 is an apocalyptic number.

It is an amenable number.

64243024 is a deficient number, since it is larger than the sum of its proper divisors (60227866).

64243024 is a wasteful number, since it uses less digits than its factorization.

64243024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4015197 (or 4015191 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 64243024 is about 8015.1746082041. The cubic root of 64243024 is about 400.5056604993.

The spelling of 64243024 in words is "sixty-four million, two hundred forty-three thousand, twenty-four".