42891459 has 16 divisors (see below), whose sum is σ = 65211552. Its totient is φ = 24841728.

The previous prime is 42891427. The next prime is 42891461. The reversal of 42891459 is 95419824.

42891459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42891459 - 2⁵ = 42891427 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42891459.

It is not an unprimeable number, because it can be changed into a prime (42891419) 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 15 ways as a sum of consecutive naturals, for example, 31684 + ... + 33009.

It is an arithmetic number, because the mean of its divisors is an integer number (4075722).

Almost surely, 2^42891459 is an apocalyptic number.

42891459 is a deficient number, since it is larger than the sum of its proper divisors (22320093).

42891459 is a wasteful number, since it uses less digits than its factorization.

42891459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64726.

The product of its digits is 103680, while the sum is 42.

The square root of 42891459 is about 6549.1571213401. The cubic root of 42891459 is about 350.0447806649.

It can be divided in two parts, 42891 and 459, that multiplied together give a square (19686969 = 4437²).

The spelling of 42891459 in words is "forty-two million, eight hundred ninety-one thousand, four hundred fifty-nine".