52442130 has 64 divisors (see below), whose sum is σ = 138475008. Its totient is φ = 12629760.

The previous prime is 52442123. The next prime is 52442171. The reversal of 52442130 is 3124425.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52442097 and 52442106.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16900 + ... + 19760.

It is an arithmetic number, because the mean of its divisors is an integer number (2163672).

Almost surely, 2^52442130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52442130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69237504).

52442130 is an abundant number, since it is smaller than the sum of its proper divisors (86032878).

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

52442130 is a wasteful number, since it uses less digits than its factorization.

52442130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 52442130 is about 7241.6938626263. The cubic root of 52442130 is about 374.3059874945.

Adding to 52442130 its reverse (3124425), we get a palindrome (55566555).

The spelling of 52442130 in words is "fifty-two million, four hundred forty-two thousand, one hundred thirty".