1834232721 has 8 divisors (see below), whose sum is σ = 2454736320. Its totient is φ = 1218275472.

The previous prime is 1834232717. The next prime is 1834232723. The reversal of 1834232721 is 1272324381.

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

It is not a de Polignac number, because 1834232721 - 2² = 1834232717 is a prime.

It is a super-3 number, since 3×1834232721³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1834232723) 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, 1135645 + ... + 1137258.

It is an arithmetic number, because the mean of its divisors is an integer number (306842040).

Almost surely, 2^1834232721 is an apocalyptic number.

It is an amenable number.

1834232721 is a deficient number, since it is larger than the sum of its proper divisors (620503599).

1834232721 is a wasteful number, since it uses less digits than its factorization.

1834232721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273175.

The product of its digits is 16128, while the sum is 33.

The square root of 1834232721 is about 42827.9432263563. The cubic root of 1834232721 is about 1224.1035164651.

The spelling of 1834232721 in words is "one billion, eight hundred thirty-four million, two hundred thirty-two thousand, seven hundred twenty-one".