1826423421 has 8 divisors (see below), whose sum is σ = 2445421440. Its totient is φ = 1212520512.

The previous prime is 1826423377. The next prime is 1826423429. The reversal of 1826423421 is 1243246281.

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

It is not a de Polignac number, because 1826423421 - 2⁹ = 1826422909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1826423429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1272940 + ... + 1274373.

It is an arithmetic number, because the mean of its divisors is an integer number (305677680).

Almost surely, 2^1826423421 is an apocalyptic number.

It is an amenable number.

1826423421 is a deficient number, since it is larger than the sum of its proper divisors (618998019).

1826423421 is a wasteful number, since it uses less digits than its factorization.

1826423421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547555.

The product of its digits is 18432, while the sum is 33.

The square root of 1826423421 is about 42736.6753620354. The cubic root of 1826423421 is about 1222.3638262347.

The spelling of 1826423421 in words is "one billion, eight hundred twenty-six million, four hundred twenty-three thousand, four hundred twenty-one".