1983446379 has 16 divisors (see below), whose sum is σ = 2939565600. Its totient is φ = 1321790688.

The previous prime is 1983446363. The next prime is 1983446411. The reversal of 1983446379 is 9736443891.

It is a happy number.

1983446379 is a `hidden beast` number, since 198 + 3 + 446 + 3 + 7 + 9 = 666.

It is not a de Polignac number, because 1983446379 - 2⁴ = 1983446363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1983446279) 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, 65917 + ... + 91169.

It is an arithmetic number, because the mean of its divisors is an integer number (183722850).

Almost surely, 2^1983446379 is an apocalyptic number.

1983446379 is a deficient number, since it is larger than the sum of its proper divisors (956119221).

1983446379 is a wasteful number, since it uses less digits than its factorization.

1983446379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28171 (or 28165 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 1983446379 is about 44535.8998898641. The cubic root of 1983446379 is about 1256.4353727786.

The spelling of 1983446379 in words is "one billion, nine hundred eighty-three million, four hundred forty-six thousand, three hundred seventy-nine".