42140224 has 28 divisors (see below), whose sum is σ = 95569024. Its totient is φ = 18059904.

The previous prime is 42140201. The next prime is 42140237. The reversal of 42140224 is 42204124.

It is a tau number, because it is divible by the number of its divisors (28).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46584 + ... + 47479.

Almost surely, 2^42140224 is an apocalyptic number.

It is an amenable number.

42140224 is an abundant number, since it is smaller than the sum of its proper divisors (53428800).

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

42140224 is an equidigital number, since it uses as much as digits as its factorization.

42140224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94082 (or 94072 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 42140224 is about 6491.5502000678. The cubic root of 42140224 is about 347.9890779150.

Adding to 42140224 its reverse (42204124), we get a palindrome (84344348).

The spelling of 42140224 in words is "forty-two million, one hundred forty thousand, two hundred twenty-four".