1983994054 has 8 divisors (see below), whose sum is σ = 3401132688. Its totient is φ = 850283160.

The previous prime is 1983994043. The next prime is 1983994063. The reversal of 1983994054 is 4504993891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1983993992 and 1983994010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70856917 + ... + 70856944.

It is an arithmetic number, because the mean of its divisors is an integer number (425141586).

Almost surely, 2^1983994054 is an apocalyptic number.

1983994054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1983994054 is a deficient number, since it is larger than the sum of its proper divisors (1417138634).

1983994054 is a wasteful number, since it uses less digits than its factorization.

1983994054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141713870.

The product of its (nonzero) digits is 1399680, while the sum is 52.

The square root of 1983994054 is about 44542.0481567698. The cubic root of 1983994054 is about 1256.5510056697.

The spelling of 1983994054 in words is "one billion, nine hundred eighty-three million, nine hundred ninety-four thousand, fifty-four".