52409344 has 88 divisors (see below), whose sum is σ = 117383168. Its totient is φ = 23224320.

The previous prime is 52409339. The next prime is 52409347. The reversal of 52409344 is 44390425.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52409347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412609 + ... + 412735.

Almost surely, 2^52409344 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 52409344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58691584).

52409344 is an abundant number, since it is smaller than the sum of its proper divisors (64973824).

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

52409344 is a wasteful number, since it uses less digits than its factorization.

52409344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 52409344 is about 7239.4298118015. The cubic root of 52409344 is about 374.2279678157.

Adding to 52409344 its reverse (44390425), we get a palindrome (96799769).

The spelling of 52409344 in words is "fifty-two million, four hundred nine thousand, three hundred forty-four".