1840120983 has 10 divisors (see below), whose sum is σ = 2748822824. Its totient is φ = 1226747268.

The previous prime is 1840120981. The next prime is 1840121029. The reversal of 1840120983 is 3890210481.

It is not a de Polignac number, because 1840120983 - 2¹ = 1840120981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840120981) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 11358691 + ... + 11358852.

Almost surely, 2^1840120983 is an apocalyptic number.

1840120983 is a deficient number, since it is larger than the sum of its proper divisors (908701841).

1840120983 is an equidigital number, since it uses as much as digits as its factorization.

1840120983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22717555 (or 22717546 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1840120983 is about 42896.6313712394. The cubic root of 1840120983 is about 1225.4119914806.

The spelling of 1840120983 in words is "one billion, eight hundred forty million, one hundred twenty thousand, nine hundred eighty-three".