1801441081 has 8 divisors (see below), whose sum is σ = 1997425728. Its totient is φ = 1610826000.

The previous prime is 1801441073. The next prime is 1801441123.

1801441081 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1801441081 - 2³ = 1801441073 is a prime.

It is a super-2 number, since 2×1801441081² = 6490379936628897122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1801441001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341685 + ... + 1343026.

It is an arithmetic number, because the mean of its divisors is an integer number (249678216).

Almost surely, 2^1801441081 is an apocalyptic number.

1801441081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1801441081 is a deficient number, since it is larger than the sum of its proper divisors (195984647).

1801441081 is a wasteful number, since it uses less digits than its factorization.

1801441081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684783.

The product of its (nonzero) digits is 1024, while the sum is 28.

The square root of 1801441081 is about 42443.3867757982. The cubic root of 1801441081 is about 1216.7649401406.

It can be divided in two parts, 18014 and 41081, that added together give a palindrome (59095).

The spelling of 1801441081 in words is "one billion, eight hundred one million, four hundred forty-one thousand, eighty-one".