1994261992 has 16 divisors (see below), whose sum is σ = 3859862400. Its totient is φ = 964965360.

The previous prime is 1994261963. The next prime is 1994262007. The reversal of 1994261992 is 2991624991.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4020442 + ... + 4020937.

It is an arithmetic number, because the mean of its divisors is an integer number (241241400).

Almost surely, 2^1994261992 is an apocalyptic number.

It is an amenable number.

1994261992 is a deficient number, since it is larger than the sum of its proper divisors (1865600408).

1994261992 is a wasteful number, since it uses less digits than its factorization.

1994261992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8041416 (or 8041412 counting only the distinct ones).

The product of its digits is 629856, while the sum is 52.

The square root of 1994261992 is about 44657.1605904361. The cubic root of 1994261992 is about 1258.7149895839.

The spelling of 1994261992 in words is "one billion, nine hundred ninety-four million, two hundred sixty-one thousand, nine hundred ninety-two".