42124012 has 12 divisors (see below), whose sum is σ = 84248080. Its totient is φ = 18053136.

The previous prime is 42124003. The next prime is 42124057. The reversal of 42124012 is 21042124.

42124012 is an admirable number.

It is a super-2 number, since 2×42124012² = 3548864773952288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752187 + ... + 752242.

Almost surely, 2^42124012 is an apocalyptic number.

It is an amenable number.

42124012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42124012 is a wasteful number, since it uses less digits than its factorization.

42124012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504440 (or 1504438 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 42124012 is about 6490.3013797512. The cubic root of 42124012 is about 347.9444465864.

Adding to 42124012 its reverse (21042124), we get a palindrome (63166136).

The spelling of 42124012 in words is "forty-two million, one hundred twenty-four thousand, twelve".