52140342 has 16 divisors (see below), whose sum is σ = 104417280. Its totient is φ = 17357352.

The previous prime is 52140337. The next prime is 52140349. The reversal of 52140342 is 24304125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52140349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 342 + ... + 10217.

It is an arithmetic number, because the mean of its divisors is an integer number (6526080).

Almost surely, 2^52140342 is an apocalyptic number.

52140342 is an abundant number, since it is smaller than the sum of its proper divisors (52276938).

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

52140342 is a wasteful number, since it uses less digits than its factorization.

52140342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11387.

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

The square root of 52140342 is about 7220.8269609512. The cubic root of 52140342 is about 373.5866012814.

Adding to 52140342 its reverse (24304125), we get a palindrome (76444467).

The spelling of 52140342 in words is "fifty-two million, one hundred forty thousand, three hundred forty-two".