1983494458 has 16 divisors (see below), whose sum is σ = 3256301664. Its totient is φ = 898648560.

The previous prime is 1983494441. The next prime is 1983494477. The reversal of 1983494458 is 8544943891.

It is a junction number, because it is equal to n+sod(n) for n = 1983494399 and 1983494408.

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, 140085 + ... + 153592.

It is an arithmetic number, because the mean of its divisors is an integer number (203518854).

Almost surely, 2^1983494458 is an apocalyptic number.

1983494458 is a deficient number, since it is larger than the sum of its proper divisors (1272807206).

1983494458 is a wasteful number, since it uses less digits than its factorization.

1983494458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293997.

The product of its digits is 4976640, while the sum is 55.

The square root of 1983494458 is about 44536.4396646162. The cubic root of 1983494458 is about 1256.4455247493.

The spelling of 1983494458 in words is "one billion, nine hundred eighty-three million, four hundred ninety-four thousand, four hundred fifty-eight".