1994082012 has 36 divisors (see below), whose sum is σ = 5428335640. Its totient is φ = 613563552.

The previous prime is 1994082011. The next prime is 1994082029. The reversal of 1994082012 is 2102804991.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994082011) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2129962 + ... + 2130897.

Almost surely, 2^1994082012 is an apocalyptic number.

1994082012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1994082012 is an abundant number, since it is smaller than the sum of its proper divisors (3434253628).

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

1994082012 is a wasteful number, since it uses less digits than its factorization.

1994082012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4260882 (or 4260877 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 1994082012 is about 44655.1454146104. The cubic root of 1994082012 is about 1258.6771225534.

The spelling of 1994082012 in words is "one billion, nine hundred ninety-four million, eighty-two thousand, twelve".