64244032 has 28 divisors (see below), whose sum is σ = 128358900. Its totient is φ = 31901696.

The previous prime is 64244029. The next prime is 64244053. The reversal of 64244032 is 23044246.

It can be written as a sum of positive squares in 2 ways, for example, as 18870336 + 45373696 = 4344^2 + 6736^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64243988 and 64244006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6168 + ... + 12904.

Almost surely, 2^64244032 is an apocalyptic number.

It is an amenable number.

64244032 is a deficient number, since it is larger than the sum of its proper divisors (64114868).

64244032 is a wasteful number, since it uses less digits than its factorization.

64244032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6898 (or 6888 counting only the distinct ones).

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

The square root of 64244032 is about 8015.2374886837. The cubic root of 64244032 is about 400.5077551889.

Adding to 64244032 its reverse (23044246), we get a palindrome (87288278).

The spelling of 64244032 in words is "sixty-four million, two hundred forty-four thousand, thirty-two".