1904381696 has 72 divisors (see below), whose sum is σ = 4363972704. Its totient is φ = 812482560.

The previous prime is 1904381651. The next prime is 1904381707. The reversal of 1904381696 is 6961834091.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1904381696.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415256 + ... + 419816.

It is an arithmetic number, because the mean of its divisors is an integer number (60610732).

Almost surely, 2^1904381696 is an apocalyptic number.

1904381696 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 1904381696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2181986352).

1904381696 is an abundant number, since it is smaller than the sum of its proper divisors (2459591008).

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

1904381696 is an equidigital number, since it uses as much as digits as its factorization.

1904381696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4817 (or 4803 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1904381696 is about 43639.2219912317. The cubic root of 1904381696 is about 1239.5137045606.

The spelling of 1904381696 in words is "one billion, nine hundred four million, three hundred eighty-one thousand, six hundred ninety-six".