1823921648 has 40 divisors (see below), whose sum is σ = 3619696896. Its totient is φ = 889990400.

The previous prime is 1823921557. The next prime is 1823921707. The reversal of 1823921648 is 8461293281.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1823921599 and 1823921608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156338 + ... + 167598.

Almost surely, 2^1823921648 is an apocalyptic number.

It is an amenable number.

1823921648 is a deficient number, since it is larger than the sum of its proper divisors (1795775248).

1823921648 is a wasteful number, since it uses less digits than its factorization.

1823921648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11513 (or 11507 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 1823921648 is about 42707.3957061303. The cubic root of 1823921648 is about 1221.8054536747.

The spelling of 1823921648 in words is "one billion, eight hundred twenty-three million, nine hundred twenty-one thousand, six hundred forty-eight".