42621859 has 8 divisors (see below), whose sum is σ = 49509728. Its totient is φ = 35933760.

The previous prime is 42621857. The next prime is 42621863. The reversal of 42621859 is 95812624.

42621859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42621859 - 2¹ = 42621857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42621857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49482 + ... + 50335.

It is an arithmetic number, because the mean of its divisors is an integer number (6188716).

Almost surely, 2^42621859 is an apocalyptic number.

42621859 is a deficient number, since it is larger than the sum of its proper divisors (6887869).

42621859 is an equidigital number, since it uses as much as digits as its factorization.

42621859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99885.

The product of its digits is 34560, while the sum is 37.

The square root of 42621859 is about 6528.5418739562. The cubic root of 42621859 is about 349.3098208548.

The spelling of 42621859 in words is "forty-two million, six hundred twenty-one thousand, eight hundred fifty-nine".