42789245 has 8 divisors (see below), whose sum is σ = 51448416. Its totient is φ = 34163856.

The previous prime is 42789211. The next prime is 42789247. The reversal of 42789245 is 54298724.

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 42789245 - 2²⁰ = 41740669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42789247) 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, 5567 + ... + 10796.

It is an arithmetic number, because the mean of its divisors is an integer number (6431052).

Almost surely, 2^42789245 is an apocalyptic number.

It is an amenable number.

42789245 is a deficient number, since it is larger than the sum of its proper divisors (8659171).

42789245 is a wasteful number, since it uses less digits than its factorization.

42789245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16891.

The product of its digits is 161280, while the sum is 41.

The square root of 42789245 is about 6541.3488670151. The cubic root of 42789245 is about 349.7664973144.

It can be divided in two parts, 42789 and 245, that added together give a palindrome (43034).

The spelling of 42789245 in words is "forty-two million, seven hundred eighty-nine thousand, two hundred forty-five".