401044081 has 4 divisors (see below), whose sum is σ = 401393664. Its totient is φ = 400694500.

The previous prime is 401044069. The next prime is 401044087. The reversal of 401044081 is 180440104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401044081 - 2⁹ = 401043569 is a prime.

It is a super-2 number, since 2×401044081² = 321672709810269122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401044087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173065 + ... + 175366.

It is an arithmetic number, because the mean of its divisors is an integer number (100348416).

Almost surely, 2^401044081 is an apocalyptic number.

It is an amenable number.

401044081 is a deficient number, since it is larger than the sum of its proper divisors (349583).

401044081 is a wasteful number, since it uses less digits than its factorization.

401044081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349582.

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 401044081 is about 20026.0850143007. The cubic root of 401044081 is about 737.4468139755.

Adding to 401044081 its reverse (180440104), we get a palindrome (581484185).

The spelling of 401044081 in words is "four hundred one million, forty-four thousand, eighty-one".