52406370 has 72 divisors (see below), whose sum is σ = 143894556. Its totient is φ = 13231296.

The previous prime is 52406357. The next prime is 52406377. The reversal of 52406370 is 7360425.

It is a happy number.

52406370 is a `hidden beast` number, since 5 + 24 + 0 + 637 + 0 = 666.

52406370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 52403121 + 3249 = 7239^2 + 57^2 .

It is not an unprimeable number, because it can be changed into a prime (52406377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 31684 + ... + 33296.

Almost surely, 2^52406370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52406370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71947278).

52406370 is an abundant number, since it is smaller than the sum of its proper divisors (91488186).

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

52406370 is a wasteful number, since it uses less digits than its factorization.

52406370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 52406370 is about 7239.2244059706. The cubic root of 52406370 is about 374.2208890842.

Adding to 52406370 its reverse (7360425), we get a palindrome (59766795).

The spelling of 52406370 in words is "fifty-two million, four hundred six thousand, three hundred seventy".