2234829821 has 4 divisors (see below), whose sum is σ = 2554091232. Its totient is φ = 1915568412.

The previous prime is 2234829781. The next prime is 2234829833. The reversal of 2234829821 is 1289284322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2234829821 is a prime.

It is a super-3 number, since 3×2234829821³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2234829881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159630695 + ... + 159630708.

It is an arithmetic number, because the mean of its divisors is an integer number (638522808).

Almost surely, 2^2234829821 is an apocalyptic number.

It is an amenable number.

2234829821 is a deficient number, since it is larger than the sum of its proper divisors (319261411).

2234829821 is an equidigital number, since it uses as much as digits as its factorization.

2234829821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319261410.

The product of its digits is 110592, while the sum is 41.

The square root of 2234829821 is about 47273.9867263170. The cubic root of 2234829821 is about 1307.4190820117.

The spelling of 2234829821 in words is "two billion, two hundred thirty-four million, eight hundred twenty-nine thousand, eight hundred twenty-one".