2421738939 has 8 divisors (see below), whose sum is σ = 3230095680. Its totient is φ = 1613937416.

The previous prime is 2421738937. The next prime is 2421738947. The reversal of 2421738939 is 9398371242.

2421738939 is digitally balanced in base 2 and base 4, because in such bases 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 2421738939 - 2¹ = 2421738937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2421738937) 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, 128517 + ... + 146150.

It is an arithmetic number, because the mean of its divisors is an integer number (403761960).

Almost surely, 2^2421738939 is an apocalyptic number.

2421738939 is a deficient number, since it is larger than the sum of its proper divisors (808356741).

2421738939 is a wasteful number, since it uses less digits than its factorization.

2421738939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277609.

The product of its digits is 653184, while the sum is 48.

The square root of 2421738939 is about 49211.1668120153. The cubic root of 2421738939 is about 1342.8961898134.

The spelling of 2421738939 in words is "two billion, four hundred twenty-one million, seven hundred thirty-eight thousand, nine hundred thirty-nine".