64203344 has 10 divisors (see below), whose sum is σ = 124394010. Its totient is φ = 32101664.

The previous prime is 64203341. The next prime is 64203389. The reversal of 64203344 is 44330246.

64203344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 36240400 + 27962944 = 6020^2 + 5288^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64203341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006339 + ... + 2006370.

It is an arithmetic number, because the mean of its divisors is an integer number (12439401).

Almost surely, 2^64203344 is an apocalyptic number.

It is an amenable number.

64203344 is a deficient number, since it is larger than the sum of its proper divisors (60190666).

64203344 is a wasteful number, since it uses less digits than its factorization.

64203344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012717 (or 4012711 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 64203344 is about 8012.6989210877. The cubic root of 64203344 is about 400.4231854606.

The spelling of 64203344 in words is "sixty-four million, two hundred three thousand, three hundred forty-four".