64244036 has 6 divisors (see below), whose sum is σ = 112427070. Its totient is φ = 32122016.

The previous prime is 64244029. The next prime is 64244053. The reversal of 64244036 is 63044246.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64000000 + 244036 = 8000^2 + 494^2 .

It is an unprimeable number.

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, 8030501 + ... + 8030508.

It is an arithmetic number, because the mean of its divisors is an integer number (18737845).

Almost surely, 2^64244036 is an apocalyptic number.

It is an amenable number.

64244036 is a deficient number, since it is larger than the sum of its proper divisors (48183034).

64244036 is a wasteful number, since it uses less digits than its factorization.

64244036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16061013 (or 16061011 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 64244036 is about 8015.2377382084. The cubic root of 64244036 is about 400.5077635012.

It can be divided in two parts, 64 and 244036, that multiplied together give a square (15618304 = 3952²).

The spelling of 64244036 in words is "sixty-four million, two hundred forty-four thousand, thirty-six".