52443340 has 12 divisors (see below), whose sum is σ = 110131056. Its totient is φ = 20977328.

The previous prime is 52443331. The next prime is 52443343. The reversal of 52443340 is 4334425.

It is not an unprimeable number, because it can be changed into a prime (52443343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311064 + ... + 1311103.

It is an arithmetic number, because the mean of its divisors is an integer number (9177588).

Almost surely, 2^52443340 is an apocalyptic number.

It is an amenable number.

52443340 is an abundant number, since it is smaller than the sum of its proper divisors (57687716).

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

52443340 is a wasteful number, since it uses less digits than its factorization.

52443340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622176 (or 2622174 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 52443340 is about 7241.7774061345. Note that the first 3 decimals coincide. The cubic root of 52443340 is about 374.3088662662.

Adding to 52443340 its reverse (4334425), we get a palindrome (56777765).

The spelling of 52443340 in words is "fifty-two million, four hundred forty-three thousand, three hundred forty".