1801799268 has 12 divisors (see below), whose sum is σ = 4204198320. Its totient is φ = 600599752.

The previous prime is 1801799221. The next prime is 1801799269. The reversal of 1801799268 is 8629971081.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1801799268.

It is not an unprimeable number, because it can be changed into a prime (1801799269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75074958 + ... + 75074981.

It is an arithmetic number, because the mean of its divisors is an integer number (350349860).

Almost surely, 2^1801799268 is an apocalyptic number.

It is an amenable number.

1801799268 is an abundant number, since it is smaller than the sum of its proper divisors (2402399052).

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

1801799268 is a wasteful number, since it uses less digits than its factorization.

1801799268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150149946 (or 150149944 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 51.

The square root of 1801799268 is about 42447.6061515841. The cubic root of 1801799268 is about 1216.8455793773.

The spelling of 1801799268 in words is "one billion, eight hundred one million, seven hundred ninety-nine thousand, two hundred sixty-eight".