1903795056 has 80 divisors (see below), whose sum is σ = 5518828320. Its totient is φ = 628300800.

The previous prime is 1903795021. The next prime is 1903795129. The reversal of 1903795056 is 6505973091.

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 15 ways as a sum of consecutive naturals, for example, 21816 + ... + 65448.

It is an arithmetic number, because the mean of its divisors is an integer number (68985354).

Almost surely, 2^1903795056 is an apocalyptic number.

1903795056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is a pronic number, being equal to 43632×43633.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1903795056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2759414160).

1903795056 is an abundant number, since it is smaller than the sum of its proper divisors (3615033264).

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

1903795056 is a wasteful number, since it uses less digits than its factorization.

1903795056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43751 (or 43739 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The square root of 1903795056 is about 43632.4999971352. The cubic root of 1903795056 is about 1239.3864151278.

The spelling of 1903795056 in words is "one billion, nine hundred three million, seven hundred ninety-five thousand, fifty-six".