42000124 has 6 divisors (see below), whose sum is σ = 73500224. Its totient is φ = 21000060.

The previous prime is 42000109. The next prime is 42000131. The reversal of 42000124 is 42100024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250012 + ... + 5250019.

Almost surely, 2^42000124 is an apocalyptic number.

It is an amenable number.

42000124 is a deficient number, since it is larger than the sum of its proper divisors (31500100).

42000124 is a wasteful number, since it uses less digits than its factorization.

42000124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10500035 (or 10500033 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 42000124 is about 6480.7502652085. The cubic root of 42000124 is about 347.6030065735.

Adding to 42000124 its reverse (42100024), we get a palindrome (84100148).

It can be divided in two parts, 42000 and 124, that added together give a palindrome (42124).

The spelling of 42000124 in words is "forty-two million, one hundred twenty-four", and thus it is an aban number.