1994935992 has 64 divisors (see below), whose sum is σ = 6035109120. Its totient is φ = 536452608.

The previous prime is 1994935967. The next prime is 1994936039. The reversal of 1994935992 is 2995394991.

It is a super-2 number, since 2×1994935992² = 7959539224354048128, which contains 22 as substring.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 346398 + ... + 352109.

It is an arithmetic number, because the mean of its divisors is an integer number (94298580).

Almost surely, 2^1994935992 is an apocalyptic number.

1994935992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1994935992 is an abundant number, since it is smaller than the sum of its proper divisors (4040173128).

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

1994935992 is a wasteful number, since it uses less digits than its factorization.

1994935992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698540 (or 698536 counting only the distinct ones).

The product of its digits is 7085880, while the sum is 60.

The square root of 1994935992 is about 44664.7063350919. The cubic root of 1994935992 is about 1258.8567760943.

The spelling of 1994935992 in words is "one billion, nine hundred ninety-four million, nine hundred thirty-five thousand, nine hundred ninety-two".