42716289 has 24 divisors (see below), whose sum is σ = 72279648. Its totient is φ = 22189440.

The previous prime is 42716273. The next prime is 42716293. The reversal of 42716289 is 98261724.

It is not a de Polignac number, because 42716289 - 2⁴ = 42716273 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42716209) 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 23 ways as a sum of consecutive naturals, for example, 11592 + ... + 14825.

It is an arithmetic number, because the mean of its divisors is an integer number (3011652).

Almost surely, 2^42716289 is an apocalyptic number.

42716289 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

42716289 is a deficient number, since it is larger than the sum of its proper divisors (29563359).

42716289 is a wasteful number, since it uses less digits than its factorization.

42716289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26445 (or 26438 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 42716289 is about 6535.7699622921. The cubic root of 42716289 is about 349.5675993524.

The spelling of 42716289 in words is "forty-two million, seven hundred sixteen thousand, two hundred eighty-nine".