52440336 has 120 divisors (see below), whose sum is σ = 160119960. Its totient is φ = 15925248.

The previous prime is 52440331. The next prime is 52440341. The reversal of 52440336 is 63304425.

It is an interprime number because it is at equal distance from previous prime (52440331) and next prime (52440341).

It can be written as a sum of positive squares in 4 ways, for example, as 18147600 + 34292736 = 4260^2 + 5856^2 .

It is not an unprimeable number, because it can be changed into a prime (52440331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 203920 + ... + 204176.

It is an arithmetic number, because the mean of its divisors is an integer number (1334333).

Almost surely, 2^52440336 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 52440336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80059980).

52440336 is an abundant number, since it is smaller than the sum of its proper divisors (107679624).

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

52440336 is a wasteful number, since it uses less digits than its factorization.

52440336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 52440336 is about 7241.5699955189. The cubic root of 52440336 is about 374.3017192176.

The spelling of 52440336 in words is "fifty-two million, four hundred forty thousand, three hundred thirty-six".