2421606189 has 8 divisors (see below), whose sum is σ = 3303896992. Its totient is φ = 1576859760.

The previous prime is 2421606181. The next prime is 2421606203. The reversal of 2421606189 is 9816061242.

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

It is not a de Polignac number, because 2421606189 - 2³ = 2421606181 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 (2421606181) 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, 9385942 + ... + 9386199.

It is an arithmetic number, because the mean of its divisors is an integer number (412987124).

Almost surely, 2^2421606189 is an apocalyptic number.

It is an amenable number.

2421606189 is a deficient number, since it is larger than the sum of its proper divisors (882290803).

2421606189 is a wasteful number, since it uses less digits than its factorization.

2421606189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18772187.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 2421606189 is about 49209.8180142947. The cubic root of 2421606189 is about 1342.8716519736.

The spelling of 2421606189 in words is "two billion, four hundred twenty-one million, six hundred six thousand, one hundred eighty-nine".