42012388 has 12 divisors (see below), whose sum is σ = 80205552. Its totient is φ = 19096520.

The previous prime is 42012379. The next prime is 42012403. The reversal of 42012388 is 88321024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477370 + ... + 477457.

It is an arithmetic number, because the mean of its divisors is an integer number (6683796).

Almost surely, 2^42012388 is an apocalyptic number.

It is an amenable number.

42012388 is a deficient number, since it is larger than the sum of its proper divisors (38193164).

42012388 is a wasteful number, since it uses less digits than its factorization.

42012388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954842 (or 954840 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 42012388 is about 6481.6963828924. The cubic root of 42012388 is about 347.6368365403.

The spelling of 42012388 in words is "forty-two million, twelve thousand, three hundred eighty-eight".