1936736642 has 4 divisors (see below), whose sum is σ = 2905104966. Its totient is φ = 968368320.

The previous prime is 1936736569. The next prime is 1936736663. The reversal of 1936736642 is 2466376391.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1900000921 + 36735721 = 43589^2 + 6061^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484184159 + ... + 484184162.

Almost surely, 2^1936736642 is an apocalyptic number.

1936736642 is a deficient number, since it is larger than the sum of its proper divisors (968368324).

1936736642 is an equidigital number, since it uses as much as digits as its factorization.

1936736642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968368323.

The product of its digits is 979776, while the sum is 47.

The square root of 1936736642 is about 44008.3701356912. The cubic root of 1936736642 is about 1246.4939924829.

The spelling of 1936736642 in words is "one billion, nine hundred thirty-six million, seven hundred thirty-six thousand, six hundred forty-two".