1801963316 has 6 divisors (see below), whose sum is σ = 3153435810. Its totient is φ = 900981656.

The previous prime is 1801963301. The next prime is 1801963349. The reversal of 1801963316 is 6133691081.

It can be written as a sum of positive squares in only one way, i.e., 1457712400 + 344250916 = 38180^2 + 18554^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1801963316.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225245411 + ... + 225245418.

It is an arithmetic number, because the mean of its divisors is an integer number (525572635).

Almost surely, 2^1801963316 is an apocalyptic number.

It is an amenable number.

1801963316 is a deficient number, since it is larger than the sum of its proper divisors (1351472494).

1801963316 is a wasteful number, since it uses less digits than its factorization.

1801963316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450490833 (or 450490831 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1801963316 is about 42449.5384662778. The cubic root of 1801963316 is about 1216.8825082089.

The spelling of 1801963316 in words is "one billion, eight hundred one million, nine hundred sixty-three thousand, three hundred sixteen".