2238237421 has 8 divisors (see below), whose sum is σ = 2558905664. Its totient is φ = 1917799200.

The previous prime is 2238237413. The next prime is 2238237439. The reversal of 2238237421 is 1247328322.

2238237421 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 2238237421 - 2³ = 2238237413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238237721) 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, 36120 + ... + 76033.

It is an arithmetic number, because the mean of its divisors is an integer number (319863208).

Almost surely, 2^2238237421 is an apocalyptic number.

It is an amenable number.

2238237421 is a deficient number, since it is larger than the sum of its proper divisors (320668243).

2238237421 is a wasteful number, since it uses less digits than its factorization.

2238237421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115011.

The product of its digits is 32256, while the sum is 34.

The square root of 2238237421 is about 47310.0139611055. The cubic root of 2238237421 is about 1308.0832487376.

Subtracting from 2238237421 its reverse (1247328322), we obtain a palindrome (990909099).

The spelling of 2238237421 in words is "two billion, two hundred thirty-eight million, two hundred thirty-seven thousand, four hundred twenty-one".