52336440 has 192 divisors, whose sum is σ = 187518240. Its totient is φ = 12579840.

The previous prime is 52336423. The next prime is 52336441. The reversal of 52336440 is 4463325.

52336440 = 769² + 770² + ... + 848².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52336441) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 247935 + ... + 248145.

Almost surely, 2^52336440 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 52336440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93759120).

52336440 is an abundant number, since it is smaller than the sum of its proper divisors (135181800).

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

52336440 is a wasteful number, since it uses less digits than its factorization.

52336440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294 (or 287 counting only the distinct ones).

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

The square root of 52336440 is about 7234.3928563495. The cubic root of 52336440 is about 374.0543640649.

Adding to 52336440 its reverse (4463325), we get a palindrome (56799765).

It can be divided in two parts, 523 and 36440, that added together give a palindrome (36963).

The spelling of 52336440 in words is "fifty-two million, three hundred thirty-six thousand, four hundred forty".