1803697056 has 432 divisors, whose sum is σ = 6506136000. Its totient is φ = 472469760.

The previous prime is 1803697039. The next prime is 1803697097. The reversal of 1803697056 is 6507963081.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 58183761 + ... + 58183791.

It is an arithmetic number, because the mean of its divisors is an integer number (15060500).

Almost surely, 2^1803697056 is an apocalyptic number.

1803697056 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 1803697056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3253068000).

1803697056 is an abundant number, since it is smaller than the sum of its proper divisors (4702438944).

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

1803697056 is a wasteful number, since it uses less digits than its factorization.

1803697056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 62 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 1803697056 is about 42469.9547445014. The cubic root of 1803697056 is about 1217.2726533348.

The spelling of 1803697056 in words is "one billion, eight hundred three million, six hundred ninety-seven thousand, fifty-six".