1994753792 has 72 divisors (see below), whose sum is σ = 4110402240. Its totient is φ = 965652480.

The previous prime is 1994753773. The next prime is 1994753801. The reversal of 1994753792 is 2973574991.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070942 + ... + 1072802.

It is an arithmetic number, because the mean of its divisors is an integer number (57088920).

Almost surely, 2^1994753792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1994753792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2055201120).

1994753792 is an abundant number, since it is smaller than the sum of its proper divisors (2115648448).

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

1994753792 is an equidigital number, since it uses as much as digits as its factorization.

1994753792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009 (or 1995 counting only the distinct ones).

The product of its digits is 4286520, while the sum is 56.

The square root of 1994753792 is about 44662.6666467644. Note that the first 4 decimals coincide. The cubic root of 1994753792 is about 1258.8184506061.

The spelling of 1994753792 in words is "one billion, nine hundred ninety-four million, seven hundred fifty-three thousand, seven hundred ninety-two".