1983246881 has 16 divisors (see below), whose sum is σ = 2473801728. Its totient is φ = 1544648400.

The previous prime is 1983246799. The next prime is 1983246893. The reversal of 1983246881 is 1886423891.

It is a cyclic number.

It is not a de Polignac number, because 1983246881 - 2³⁰ = 909505057 is a prime.

It is a super-2 number, since 2×1983246881² = 7866536381992456322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1983296881) 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, 200846 + ... + 210488.

It is an arithmetic number, because the mean of its divisors is an integer number (154612608).

Almost surely, 2^1983246881 is an apocalyptic number.

1983246881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1983246881 is a deficient number, since it is larger than the sum of its proper divisors (490554847).

1983246881 is a wasteful number, since it uses less digits than its factorization.

1983246881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12332.

The product of its digits is 663552, while the sum is 50.

The square root of 1983246881 is about 44533.6600898691. The cubic root of 1983246881 is about 1256.3932466506.

The spelling of 1983246881 in words is "one billion, nine hundred eighty-three million, two hundred forty-six thousand, eight hundred eighty-one".