2421738893 has 16 divisors (see below), whose sum is σ = 2932153344. Its totient is φ = 1952574720.

The previous prime is 2421738889. The next prime is 2421738899. The reversal of 2421738893 is 3988371242.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2421738893 - 2² = 2421738889 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 (2421738899) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 258023 + ... + 267243.

It is an arithmetic number, because the mean of its divisors is an integer number (183259584).

Almost surely, 2^2421738893 is an apocalyptic number.

It is an amenable number.

2421738893 is a deficient number, since it is larger than the sum of its proper divisors (510414451).

2421738893 is a wasteful number, since it uses less digits than its factorization.

2421738893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11452.

The product of its digits is 580608, while the sum is 47.

The square root of 2421738893 is about 49211.1663446417. The cubic root of 2421738893 is about 1342.8961813108.

The spelling of 2421738893 in words is "two billion, four hundred twenty-one million, seven hundred thirty-eight thousand, eight hundred ninety-three".