42116789 has 8 divisors (see below), whose sum is σ = 49480032. Its totient is φ = 35342640.

The previous prime is 42116777. The next prime is 42116797. The reversal of 42116789 is 98761124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42116789 - 2⁸ = 42116533 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42116759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147119 + ... + 147404.

It is an arithmetic number, because the mean of its divisors is an integer number (6185004).

Almost surely, 2^42116789 is an apocalyptic number.

It is an amenable number.

42116789 is a deficient number, since it is larger than the sum of its proper divisors (7363243).

42116789 is a wasteful number, since it uses less digits than its factorization.

42116789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294547.

The product of its digits is 24192, while the sum is 38.

The square root of 42116789 is about 6489.7449102411. The cubic root of 42116789 is about 347.9245581168.

The spelling of 42116789 in words is "forty-two million, one hundred sixteen thousand, seven hundred eighty-nine".