1822671573 has 16 divisors (see below), whose sum is σ = 2488073280. Its totient is φ = 1186222464.

The previous prime is 1822671569. The next prime is 1822671583. The reversal of 1822671573 is 3751762281.

1822671573 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1822671573 - 2² = 1822671569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1822671583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445465 + ... + 449537.

It is an arithmetic number, because the mean of its divisors is an integer number (155504580).

Almost surely, 2^1822671573 is an apocalyptic number.

It is an amenable number.

1822671573 is a deficient number, since it is larger than the sum of its proper divisors (665401707).

1822671573 is a wasteful number, since it uses less digits than its factorization.

1822671573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7588.

The product of its digits is 141120, while the sum is 42.

The square root of 1822671573 is about 42692.7578518887. The cubic root of 1822671573 is about 1221.5262571928.

The spelling of 1822671573 in words is "one billion, eight hundred twenty-two million, six hundred seventy-one thousand, five hundred seventy-three".