1801011072 has 96 divisors (see below), whose sum is σ = 5565044520. Its totient is φ = 514569216.

The previous prime is 1801011071. The next prime is 1801011101. The reversal of 1801011072 is 2701101081.

1801011072 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×1801011072³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1801011071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29043 + ... + 66674.

Almost surely, 2^1801011072 is an apocalyptic number.

1801011072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1801011072 is an abundant number, since it is smaller than the sum of its proper divisors (3764033448).

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

1801011072 is an equidigital number, since it uses as much as digits as its factorization.

1801011072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95748 (or 95729 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 21.

The square root of 1801011072 is about 42438.3207961861. The cubic root of 1801011072 is about 1216.6681173770.

Subtracting 1801011072 from its reverse (2701101081), we obtain a palindrome (900090009).

The spelling of 1801011072 in words is "one billion, eight hundred one million, eleven thousand, seventy-two".