42036012 has 18 divisors (see below), whose sum is σ = 106257788. Its totient is φ = 14011992.

The previous prime is 42036011. The next prime is 42036041. The reversal of 42036012 is 21063024.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (42036011) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 583798 + ... + 583869.

Almost surely, 2^42036012 is an apocalyptic number.

It is an amenable number.

42036012 is an abundant number, since it is smaller than the sum of its proper divisors (64221776).

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

42036012 is a wasteful number, since it uses less digits than its factorization.

42036012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167677 (or 1167672 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 42036012 is about 6483.5184892156. The cubic root of 42036012 is about 347.7019842595.

Adding to 42036012 its reverse (21063024), we get a palindrome (63099036).

The spelling of 42036012 in words is "forty-two million, thirty-six thousand, twelve".