42140024 has 32 divisors (see below), whose sum is σ = 83980800. Its totient is φ = 19766880.

The previous prime is 42140017. The next prime is 42140029. The reversal of 42140024 is 42004124.

It is a junction number, because it is equal to n+sod(n) for n = 42139984 and 42140011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42140029) 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, 14969 + ... + 17559.

It is an arithmetic number, because the mean of its divisors is an integer number (2624400).

Almost surely, 2^42140024 is an apocalyptic number.

It is an amenable number.

42140024 is a deficient number, since it is larger than the sum of its proper divisors (41840776).

42140024 is a wasteful number, since it uses less digits than its factorization.

42140024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2723 (or 2719 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 42140024 is about 6491.5347954086. The cubic root of 42140024 is about 347.9885273886.

Adding to 42140024 its reverse (42004124), we get a palindrome (84144148).

The spelling of 42140024 in words is "forty-two million, one hundred forty thousand, twenty-four".