52307340 has 24 divisors (see below), whose sum is σ = 146460720. Its totient is φ = 13948608.

The previous prime is 52307327. The next prime is 52307341. The reversal of 52307340 is 4370325.

It is a self number, because there is not a number n which added to its sum of digits gives 52307340.

It is not an unprimeable number, because it can be changed into a prime (52307341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435835 + ... + 435954.

It is an arithmetic number, because the mean of its divisors is an integer number (6102530).

Almost surely, 2^52307340 is an apocalyptic number.

It is an amenable number.

52307340 is an abundant number, since it is smaller than the sum of its proper divisors (94153380).

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

52307340 is a wasteful number, since it uses less digits than its factorization.

52307340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871801 (or 871799 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 52307340 is about 7232.3813505650. The cubic root of 52307340 is about 373.9850242319.

Adding to 52307340 its reverse (4370325), we get a palindrome (56677665).

The spelling of 52307340 in words is "fifty-two million, three hundred seven thousand, three hundred forty".