1994763320 has 128 divisors (see below), whose sum is σ = 5132160000. Its totient is φ = 690708480.

The previous prime is 1994763307. The next prime is 1994763361. The reversal of 1994763320 is 233674991.

It is a Harshad number since it is a multiple of its sum of digits (44).

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 31 ways as a sum of consecutive naturals, for example, 4442456 + ... + 4442904.

It is an arithmetic number, because the mean of its divisors is an integer number (40095000).

Almost surely, 2^1994763320 is an apocalyptic number.

1994763320 is a gapful number since it is divisible by the number (10) 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 1994763320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2566080000).

1994763320 is an abundant number, since it is smaller than the sum of its proper divisors (3137396680).

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

1994763320 is a wasteful number, since it uses less digits than its factorization.

1994763320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933 (or 929 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 44.

The square root of 1994763320 is about 44662.7733129057. The cubic root of 1994763320 is about 1258.8204548640.

The spelling of 1994763320 in words is "one billion, nine hundred ninety-four million, seven hundred sixty-three thousand, three hundred twenty".