42396738 has 16 divisors (see below), whose sum is σ = 84869856. Its totient is φ = 14119520.

The previous prime is 42396737. The next prime is 42396763. The reversal of 42396738 is 83769324.

It is a self number, because there is not a number n which added to its sum of digits gives 42396738.

It is not an unprimeable number, because it can be changed into a prime (42396737) 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 7 ways as a sum of consecutive naturals, for example, 6133 + ... + 11063.

It is an arithmetic number, because the mean of its divisors is an integer number (5304366).

Almost surely, 2^42396738 is an apocalyptic number.

42396738 is an abundant number, since it is smaller than the sum of its proper divisors (42473118).

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

42396738 is a wasteful number, since it uses less digits than its factorization.

42396738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6369.

The product of its digits is 217728, while the sum is 42.

The square root of 42396738 is about 6511.2777547882. The cubic root of 42396738 is about 348.6937376641.

It can be divided in two parts, 42396 and 738, that added together give a palindrome (43134).

The spelling of 42396738 in words is "forty-two million, three hundred ninety-six thousand, seven hundred thirty-eight".