52040142 has 48 divisors (see below), whose sum is σ = 140579712. Its totient is φ = 13516560.

The previous prime is 52040141. The next prime is 52040159. The reversal of 52040142 is 24104025.

52040142 is a `hidden beast` number, since 520 + 4 + 0 + 142 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52040141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17388 + ... + 20159.

It is an arithmetic number, because the mean of its divisors is an integer number (2928744).

Almost surely, 2^52040142 is an apocalyptic number.

52040142 is an abundant number, since it is smaller than the sum of its proper divisors (88539570).

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

52040142 is a wasteful number, since it uses less digits than its factorization.

52040142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37573 (or 37570 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 52040142 is about 7213.8853608856. The cubic root of 52040142 is about 373.3471361464.

Adding to 52040142 its reverse (24104025), we get a palindrome (76144167).

The spelling of 52040142 in words is "fifty-two million, forty thousand, one hundred forty-two".