42042124 has 6 divisors (see below), whose sum is σ = 73573724. Its totient is φ = 21021060.

The previous prime is 42042109. The next prime is 42042151. The reversal of 42042124 is 42124024.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5255262 + ... + 5255269.

Almost surely, 2^42042124 is an apocalyptic number.

It is an amenable number.

42042124 is a deficient number, since it is larger than the sum of its proper divisors (31531600).

42042124 is a wasteful number, since it uses less digits than its factorization.

42042124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510535 (or 10510533 counting only the distinct ones).

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

The square root of 42042124 is about 6483.9898210901. The cubic root of 42042124 is about 347.7188352994.

Adding to 42042124 its reverse (42124024), we get a palindrome (84166148).

It can be divided in two parts, 4204 and 2124, that added together give a triangular number (6328 = T₁₁₂).

The spelling of 42042124 in words is "forty-two million, forty-two thousand, one hundred twenty-four".