42012324 has 24 divisors (see below), whose sum is σ = 108921120. Its totient is φ = 14004072.

The previous prime is 42012323. The next prime is 42012337. The reversal of 42012324 is 42321024.

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

It is a junction number, because it is equal to n+sod(n) for n = 42012297 and 42012306.

It is not an unprimeable number, because it can be changed into a prime (42012323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194394 + ... + 194609.

It is an arithmetic number, because the mean of its divisors is an integer number (4538380).

Almost surely, 2^42012324 is an apocalyptic number.

It is an amenable number.

42012324 is an abundant number, since it is smaller than the sum of its proper divisors (66908796).

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

42012324 is a wasteful number, since it uses less digits than its factorization.

42012324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389016 (or 389008 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 42012324 is about 6481.6914459113. The cubic root of 42012324 is about 347.6366600149.

Adding to 42012324 its reverse (42321024), we get a palindrome (84333348).

The spelling of 42012324 in words is "forty-two million, twelve thousand, three hundred twenty-four".