1983313642 has 8 divisors (see below), whose sum is σ = 3002264100. Its totient is φ = 982558944.

The previous prime is 1983313573. The next prime is 1983313643. The reversal of 1983313642 is 2463133891.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1611942201 + 371371441 = 40149^2 + 19271^2 .

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 = 1983313595 and 1983313604.

It is not an unprimeable number, because it can be changed into a prime (1983313643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4548667 + ... + 4549102.

Almost surely, 2^1983313642 is an apocalyptic number.

1983313642 is a deficient number, since it is larger than the sum of its proper divisors (1018950458).

1983313642 is a wasteful number, since it uses less digits than its factorization.

1983313642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9097880.

The product of its digits is 93312, while the sum is 40.

The square root of 1983313642 is about 44534.4096401872. The cubic root of 1983313642 is about 1256.4073442615.

The spelling of 1983313642 in words is "one billion, nine hundred eighty-three million, three hundred thirteen thousand, six hundred forty-two".