5143644 has 72 divisors (see below), whose sum is σ = 14676480. Its totient is φ = 1504800.

The previous prime is 5143637. The next prime is 5143667. The reversal of 5143644 is 4463415.

5143644 is a `hidden beast` number, since 5 + 14 + 3 + 644 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12067 + ... + 12485.

It is an arithmetic number, because the mean of its divisors is an integer number (203840).

Almost surely, 2^5143644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5143644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7338240).

5143644 is an abundant number, since it is smaller than the sum of its proper divisors (9532836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5143644 is a wasteful number, since it uses less digits than its factorization.

5143644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 466 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 5143644 is about 2267.9603171132. The cubic root of 5143644 is about 172.6196775051.

The spelling of 5143644 in words is "five million, one hundred forty-three thousand, six hundred forty-four".