42918807 has 8 divisors (see below), whose sum is σ = 58163440. Its totient is φ = 28143360.

The previous prime is 42918797. The next prime is 42918847. The reversal of 42918807 is 70881924.

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

It is not a de Polignac number, because 42918807 - 2¹⁰ = 42917783 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 (42918847) 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, 117082 + ... + 117447.

It is an arithmetic number, because the mean of its divisors is an integer number (7270430).

Almost surely, 2^42918807 is an apocalyptic number.

42918807 is a deficient number, since it is larger than the sum of its proper divisors (15244633).

42918807 is a wasteful number, since it uses less digits than its factorization.

42918807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234593.

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 42918807 is about 6551.2446908965. The cubic root of 42918807 is about 350.1191621461.

The spelling of 42918807 in words is "forty-two million, nine hundred eighteen thousand, eight hundred seven".