1983191742 has 32 divisors (see below), whose sum is σ = 5036678400. Its totient is φ = 566626104.

The previous prime is 1983191731. The next prime is 1983191761. The reversal of 1983191742 is 2471913891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2622892 + ... + 2623647.

It is an arithmetic number, because the mean of its divisors is an integer number (157396200).

Almost surely, 2^1983191742 is an apocalyptic number.

1983191742 is an abundant number, since it is smaller than the sum of its proper divisors (3053486658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1983191742 is a wasteful number, since it uses less digits than its factorization.

1983191742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246557 (or 5246551 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 1983191742 is about 44533.0410145097. The cubic root of 1983191742 is about 1256.3816029650.

The spelling of 1983191742 in words is "one billion, nine hundred eighty-three million, one hundred ninety-one thousand, seven hundred forty-two".