1994733216 has 480 divisors, whose sum is σ = 7376624640. Its totient is φ = 515579904.

The previous prime is 1994733151. The next prime is 1994733253. The reversal of 1994733216 is 6123374991.

It is a super-4 number, since 4×1994733216⁴ (a number of 38 digits) contains 4444 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8944881 + ... + 8945103.

It is an arithmetic number, because the mean of its divisors is an integer number (15367968).

Almost surely, 2^1994733216 is an apocalyptic number.

1994733216 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 1994733216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3688312320).

1994733216 is an abundant number, since it is smaller than the sum of its proper divisors (5381891424).

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

1994733216 is a wasteful number, since it uses less digits than its factorization.

1994733216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 281 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 1994733216 is about 44662.4362971838. The cubic root of 1994733216 is about 1258.8141223296.

The spelling of 1994733216 in words is "one billion, nine hundred ninety-four million, seven hundred thirty-three thousand, two hundred sixteen".