1801423572 has 96 divisors (see below), whose sum is σ = 4813095168. Its totient is φ = 520126464.

The previous prime is 1801423571. The next prime is 1801423579. The reversal of 1801423572 is 2753241081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801423571) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185428 + ... + 194900.

It is an arithmetic number, because the mean of its divisors is an integer number (50136408).

Almost surely, 2^1801423572 is an apocalyptic number.

1801423572 is a gapful number since it is divisible by the number (12) 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 1801423572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2406547584).

1801423572 is an abundant number, since it is smaller than the sum of its proper divisors (3011671596).

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

1801423572 is a wasteful number, since it uses less digits than its factorization.

1801423572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9569 (or 9567 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1801423572 is about 42443.1805123037. The cubic root of 1801423572 is about 1216.7609980362.

The spelling of 1801423572 in words is "one billion, eight hundred one million, four hundred twenty-three thousand, five hundred seventy-two".