64200544 has 48 divisors (see below), whose sum is σ = 138862080. Its totient is φ = 29082240.

The previous prime is 64200541. The next prime is 64200571. The reversal of 64200544 is 44500246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64200541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11689 + ... + 16279.

It is an arithmetic number, because the mean of its divisors is an integer number (2892960).

Almost surely, 2^64200544 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 64200544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69431040).

64200544 is an abundant number, since it is smaller than the sum of its proper divisors (74661536).

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

64200544 is a wasteful number, since it uses less digits than its factorization.

64200544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643 (or 4635 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 64200544 is about 8012.5241965313. The cubic root of 64200544 is about 400.4173643660.

The spelling of 64200544 in words is "sixty-four million, two hundred thousand, five hundred forty-four".