52644940 has 12 divisors (see below), whose sum is σ = 110554416. Its totient is φ = 21057968.

The previous prime is 52644931. The next prime is 52644959. The reversal of 52644940 is 4944625.

It is a junction number, because it is equal to n+sod(n) for n = 52644896 and 52644905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1316104 + ... + 1316143.

It is an arithmetic number, because the mean of its divisors is an integer number (9212868).

Almost surely, 2^52644940 is an apocalyptic number.

It is an amenable number.

52644940 is an abundant number, since it is smaller than the sum of its proper divisors (57909476).

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

52644940 is a wasteful number, since it uses less digits than its factorization.

52644940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2632256 (or 2632254 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 52644940 is about 7255.6832896702. The cubic root of 52644940 is about 374.7878859689.

The spelling of 52644940 in words is "fifty-two million, six hundred forty-four thousand, nine hundred forty".