1904911872 has 80 divisors (see below), whose sum is σ = 5114083392. Its totient is φ = 630056960.

The previous prime is 1904911871. The next prime is 1904911891. The reversal of 1904911872 is 2781194091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1904911871) by changing a digit.

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, 196483 + ... + 205949.

Almost surely, 2^1904911872 is an apocalyptic number.

1904911872 is a gapful number since it is divisible by the number (12) 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 1904911872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2557041696).

1904911872 is an abundant number, since it is smaller than the sum of its proper divisors (3209171520).

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

1904911872 is an equidigital number, since it uses as much as digits as its factorization.

1904911872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9619 (or 9603 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 1904911872 is about 43645.2961039331. The cubic root of 1904911872 is about 1239.6287199214.

The spelling of 1904911872 in words is "one billion, nine hundred four million, nine hundred eleven thousand, eight hundred seventy-two".