42015738 has 16 divisors (see below), whose sum is σ = 88974720. Its totient is φ = 13181376.

The previous prime is 42015737. The next prime is 42015739. The reversal of 42015738 is 83751024.

42015738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42015737) and next prime (42015739).

It is not an unprimeable number, because it can be changed into a prime (42015731) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 205858 + ... + 206061.

It is an arithmetic number, because the mean of its divisors is an integer number (5560920).

Almost surely, 2^42015738 is an apocalyptic number.

42015738 is an abundant number, since it is smaller than the sum of its proper divisors (46958982).

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

42015738 is a wasteful number, since it uses less digits than its factorization.

42015738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411941.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 42015738 is about 6481.9547977443. The cubic root of 42015738 is about 347.6460762948.

The spelling of 42015738 in words is "forty-two million, fifteen thousand, seven hundred thirty-eight".