42865272 has 24 divisors (see below), whose sum is σ = 116093640. Its totient is φ = 14288400.

The previous prime is 42865271. The next prime is 42865289. The reversal of 42865272 is 27256824.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42865271) 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 5 ways as a sum of consecutive naturals, for example, 297604 + ... + 297747.

It is an arithmetic number, because the mean of its divisors is an integer number (4837235).

Almost surely, 2^42865272 is an apocalyptic number.

It is an amenable number.

42865272 is an abundant number, since it is smaller than the sum of its proper divisors (73228368).

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

42865272 is a wasteful number, since it uses less digits than its factorization.

42865272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595363 (or 595356 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 42865272 is about 6547.1575511820. The cubic root of 42865272 is about 349.9735272494.

The spelling of 42865272 in words is "forty-two million, eight hundred sixty-five thousand, two hundred seventy-two".