1904743968 has 48 divisors (see below), whose sum is σ = 5039354880. Its totient is φ = 629911296.

The previous prime is 1904743961. The next prime is 1904743993. The reversal of 1904743968 is 8693474091.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1904743968.

It is not an unprimeable number, because it can be changed into a prime (1904743961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65923 + ... + 90306.

It is an arithmetic number, because the mean of its divisors is an integer number (104986560).

Almost surely, 2^1904743968 is an apocalyptic number.

It is an amenable number.

1904743968 is an abundant number, since it is smaller than the sum of its proper divisors (3134610912).

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

1904743968 is a wasteful number, since it uses less digits than its factorization.

1904743968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156369 (or 156361 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 51.

The square root of 1904743968 is about 43643.3725552918. The cubic root of 1904743968 is about 1239.5922974602.

The spelling of 1904743968 in words is "one billion, nine hundred four million, seven hundred forty-three thousand, nine hundred sixty-eight".