1936690994 has 12 divisors (see below), whose sum is σ = 3379328334. Its totient is φ = 830010384.

The previous prime is 1936690981. The next prime is 1936691023. The reversal of 1936690994 is 4990966391.

It can be written as a sum of positive squares in only one way, i.e., 1032786769 + 903904225 = 32137^2 + 30065^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9880979 + ... + 9881174.

Almost surely, 2^1936690994 is an apocalyptic number.

1936690994 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1936690994 is a deficient number, since it is larger than the sum of its proper divisors (1442637340).

1936690994 is a wasteful number, since it uses less digits than its factorization.

1936690994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19762169 (or 19762162 counting only the distinct ones).

The product of its (nonzero) digits is 2834352, while the sum is 56.

The square root of 1936690994 is about 44007.8515040214. The cubic root of 1936690994 is about 1246.4841993075.

The spelling of 1936690994 in words is "one billion, nine hundred thirty-six million, six hundred ninety thousand, nine hundred ninety-four".