64844132 has 6 divisors (see below), whose sum is σ = 113477238. Its totient is φ = 32422064.

The previous prime is 64844113. The next prime is 64844147. The reversal of 64844132 is 23144846.

It can be written as a sum of positive squares in only one way, i.e., 52070656 + 12773476 = 7216^2 + 3574^2 .

It is a super-2 number, since 2×64844132² = 8409522909666848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8105513 + ... + 8105520.

It is an arithmetic number, because the mean of its divisors is an integer number (18912873).

Almost surely, 2^64844132 is an apocalyptic number.

It is an amenable number.

64844132 is a deficient number, since it is larger than the sum of its proper divisors (48633106).

64844132 is a wasteful number, since it uses less digits than its factorization.

64844132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16211037 (or 16211035 counting only the distinct ones).

The product of its digits is 18432, while the sum is 32.

The square root of 64844132 is about 8052.5854233283. The cubic root of 64844132 is about 401.7509327365.

Adding to 64844132 its reverse (23144846), we get a palindrome (87988978).

The spelling of 64844132 in words is "sixty-four million, eight hundred forty-four thousand, one hundred thirty-two".