42438512 has 10 divisors (see below), whose sum is σ = 82224648. Its totient is φ = 21219248.

The previous prime is 42438497. The next prime is 42438559. The reversal of 42438512 is 21583424.

It is a happy number.

42438512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1326188 + ... + 1326219.

Almost surely, 2^42438512 is an apocalyptic number.

It is an amenable number.

42438512 is a deficient number, since it is larger than the sum of its proper divisors (39786136).

42438512 is a wasteful number, since it uses less digits than its factorization.

42438512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2652415 (or 2652409 counting only the distinct ones).

The product of its digits is 7680, while the sum is 29.

The square root of 42438512 is about 6514.4847839257. The cubic root of 42438512 is about 348.8082240717.

The spelling of 42438512 in words is "forty-two million, four hundred thirty-eight thousand, five hundred twelve".