5120644 has 6 divisors (see below), whose sum is σ = 8961134. Its totient is φ = 2560320.

The previous prime is 5120629. The next prime is 5120657. The reversal of 5120644 is 4460215.

It can be written as a sum of positive squares in only one way, i.e., 3378244 + 1742400 = 1838^2 + 1320^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 640077 + ... + 640084.

Almost surely, 2^5120644 is an apocalyptic number.

It is an amenable number.

5120644 is a deficient number, since it is larger than the sum of its proper divisors (3840490).

5120644 is a wasteful number, since it uses less digits than its factorization.

5120644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280165 (or 1280163 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 5120644 is about 2262.8840005621. The cubic root of 5120644 is about 172.3620012326.

Adding to 5120644 its reverse (4460215), we get a palindrome (9580859).

The spelling of 5120644 in words is "five million, one hundred twenty thousand, six hundred forty-four".