1821616096 has 48 divisors (see below), whose sum is σ = 3801739536. Its totient is φ = 856221696.

The previous prime is 1821616081. The next prime is 1821616109. The reversal of 1821616096 is 6906161281.

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, 671575 + ... + 674281.

It is an arithmetic number, because the mean of its divisors is an integer number (79202907).

Almost surely, 2^1821616096 is an apocalyptic number.

1821616096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1821616096 is an abundant number, since it is smaller than the sum of its proper divisors (1980123440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1821616096 is a wasteful number, since it uses less digits than its factorization.

1821616096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3971 (or 3963 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 1821616096 is about 42680.3947498146. The cubic root of 1821616096 is about 1221.2904235521.

The spelling of 1821616096 in words is "one billion, eight hundred twenty-one million, six hundred sixteen thousand, ninety-six".