52440312 has 64 divisors (see below), whose sum is σ = 135626400. Its totient is φ = 16885760.

The previous prime is 52440301. The next prime is 52440329. The reversal of 52440312 is 21304425.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 134614 + ... + 135002.

Almost surely, 2^52440312 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 52440312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67813200).

52440312 is an abundant number, since it is smaller than the sum of its proper divisors (83186088).

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

52440312 is a wasteful number, since it uses less digits than its factorization.

52440312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576 (or 572 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 52440312 is about 7241.5683384195. The cubic root of 52440312 is about 374.3016621162.

Adding to 52440312 its reverse (21304425), we get a palindrome (73744737).

The spelling of 52440312 in words is "fifty-two million, four hundred forty thousand, three hundred twelve".