42689143 has 12 divisors (see below), whose sum is σ = 52273560. Its totient is φ = 34664112.

The previous prime is 42689137. The next prime is 42689147. The reversal of 42689143 is 34198624.

It is not a de Polignac number, because 42689143 - 2⁹ = 42688631 is a prime.

It is a super-3 number, since 3×42689143³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42689147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21996 + ... + 23857.

It is an arithmetic number, because the mean of its divisors is an integer number (4356130).

Almost surely, 2^42689143 is an apocalyptic number.

42689143 is a deficient number, since it is larger than the sum of its proper divisors (9584417).

42689143 is a wasteful number, since it uses less digits than its factorization.

42689143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45886 (or 45879 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 42689143 is about 6533.6929067718. The cubic root of 42689143 is about 349.4935341411.

The spelling of 42689143 in words is "forty-two million, six hundred eighty-nine thousand, one hundred forty-three".