1801444450 has 48 divisors (see below), whose sum is σ = 3652016256. Its totient is φ = 657115200.

The previous prime is 1801444439. The next prime is 1801444453. The reversal of 1801444450 is 544441081.

It is not an unprimeable number, because it can be changed into a prime (1801444453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37255 + ... + 70645.

It is an arithmetic number, because the mean of its divisors is an integer number (76083672).

Almost surely, 2^1801444450 is an apocalyptic number.

1801444450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1801444450 is an abundant number, since it is smaller than the sum of its proper divisors (1850571806).

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

1801444450 is a wasteful number, since it uses less digits than its factorization.

1801444450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33499 (or 33494 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 1801444450 is about 42443.4264639414. The cubic root of 1801444450 is about 1216.7656986590.

The spelling of 1801444450 in words is "one billion, eight hundred one million, four hundred forty-four thousand, four hundred fifty".