52142238 has 32 divisors (see below), whose sum is σ = 116363520. Its totient is φ = 17307000.

The previous prime is 52142197. The next prime is 52142239. The reversal of 52142238 is 83224125.

52142238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52142239) 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 15 ways as a sum of consecutive naturals, for example, 11631 + ... + 15477.

It is an arithmetic number, because the mean of its divisors is an integer number (3636360).

Almost surely, 2^52142238 is an apocalyptic number.

52142238 is an abundant number, since it is smaller than the sum of its proper divisors (64221282).

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

52142238 is a wasteful number, since it uses less digits than its factorization.

52142238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109 (or 4103 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 52142238 is about 7220.9582466595. The cubic root of 52142238 is about 373.5911295193.

The spelling of 52142238 in words is "fifty-two million, one hundred forty-two thousand, two hundred thirty-eight".