52302740 has 48 divisors (see below), whose sum is σ = 127142400. Its totient is φ = 17701632.

The previous prime is 52302709. The next prime is 52302743. The reversal of 52302740 is 4720325.

It is a super-2 number, since 2×52302740² = 5471153223015200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52302743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8696 + ... + 13424.

It is an arithmetic number, because the mean of its divisors is an integer number (2648800).

Almost surely, 2^52302740 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 52302740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63571200).

52302740 is an abundant number, since it is smaller than the sum of its proper divisors (74839660).

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

52302740 is a wasteful number, since it uses less digits than its factorization.

52302740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824 (or 4822 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 52302740 is about 7232.0633293687. The cubic root of 52302740 is about 373.9740609423.

The spelling of 52302740 in words is "fifty-two million, three hundred two thousand, seven hundred forty".