4512644 has 6 divisors (see below), whose sum is σ = 7897134. Its totient is φ = 2256320.

The previous prime is 4512619. The next prime is 4512653. The reversal of 4512644 is 4462154.

4512644 is digitally balanced in base 5, 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., 3276100 + 1236544 = 1810^2 + 1112^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564077 + ... + 564084.

It is an arithmetic number, because the mean of its divisors is an integer number (1316189).

Almost surely, 2^4512644 is an apocalyptic number.

It is an amenable number.

4512644 is a deficient number, since it is larger than the sum of its proper divisors (3384490).

4512644 is a wasteful number, since it uses less digits than its factorization.

4512644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128165 (or 1128163 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 4512644 is about 2124.2984724374. The cubic root of 4512644 is about 165.2508458770.

Adding to 4512644 its reverse (4462154), we get a palindrome (8974798).

The spelling of 4512644 in words is "four million, five hundred twelve thousand, six hundred forty-four".