1994033856 has 112 divisors (see below), whose sum is σ = 5420563200. Its totient is φ = 646689792.

The previous prime is 1994033849. The next prime is 1994033857. The reversal of 1994033856 is 6583304991.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1994033857) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1165930 + ... + 1167638.

Almost surely, 2^1994033856 is an apocalyptic number.

1994033856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1994033856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2710281600).

1994033856 is an abundant number, since it is smaller than the sum of its proper divisors (3426529344).

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

1994033856 is a wasteful number, since it uses less digits than its factorization.

1994033856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886 (or 1876 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 48.

The square root of 1994033856 is about 44654.6062125734. The cubic root of 1994033856 is about 1258.6669903483. Note that the first 3 decimals are identical.

The spelling of 1994033856 in words is "one billion, nine hundred ninety-four million, thirty-three thousand, eight hundred fifty-six".