1809274368 has 160 divisors (see below), whose sum is σ = 5568393600. Its totient is φ = 515932160.

The previous prime is 1809274367. The next prime is 1809274381. The reversal of 1809274368 is 8634729081.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1809274367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284083 + ... + 290381.

It is an arithmetic number, because the mean of its divisors is an integer number (34802460).

Almost surely, 2^1809274368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1809274368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2784196800).

1809274368 is an abundant number, since it is smaller than the sum of its proper divisors (3759119232).

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

1809274368 is a wasteful number, since it uses less digits than its factorization.

1809274368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6348 (or 6332 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 1809274368 is about 42535.5659184170. The cubic root of 1809274368 is about 1218.5260278394.

The spelling of 1809274368 in words is "one billion, eight hundred nine million, two hundred seventy-four thousand, three hundred sixty-eight".