42736872 has 16 divisors (see below), whose sum is σ = 106842240. Its totient is φ = 14245616.

The previous prime is 42736849. The next prime is 42736873. The reversal of 42736872 is 27863724.

It is a self number, because there is not a number n which added to its sum of digits gives 42736872.

It is not an unprimeable number, because it can be changed into a prime (42736873) 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 3 ways as a sum of consecutive naturals, for example, 890328 + ... + 890375.

It is an arithmetic number, because the mean of its divisors is an integer number (6677640).

Almost surely, 2^42736872 is an apocalyptic number.

It is an amenable number.

42736872 is an abundant number, since it is smaller than the sum of its proper divisors (64105368).

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

42736872 is a wasteful number, since it uses less digits than its factorization.

42736872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1780712 (or 1780708 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 42736872 is about 6537.3444149746. The cubic root of 42736872 is about 349.6237371452.

The spelling of 42736872 in words is "forty-two million, seven hundred thirty-six thousand, eight hundred seventy-two".