401841121 has 12 divisors (see below), whose sum is σ = 467677476. Its totient is φ = 343819520.

The previous prime is 401841109. The next prime is 401841131. The reversal of 401841121 is 121148104.

It can be written as a sum of positive squares in 2 ways, for example, as 111513600 + 290327521 = 10560^2 + 17039^2 .

It is not a de Polignac number, because 401841121 - 2⁷ = 401840993 is a prime.

It is a super-2 number, since 2×401841121² = 322952573053073282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 401841092 and 401841101.

It is not an unprimeable number, because it can be changed into a prime (401841101) 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 11 ways as a sum of consecutive naturals, for example, 95620 + ... + 99733.

It is an arithmetic number, because the mean of its divisors is an integer number (38973123).

Almost surely, 2^401841121 is an apocalyptic number.

It is an amenable number.

401841121 is a deficient number, since it is larger than the sum of its proper divisors (65836355).

401841121 is a wasteful number, since it uses less digits than its factorization.

401841121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195392 (or 195381 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 22.

The square root of 401841121 is about 20045.9751820659. The cubic root of 401841121 is about 737.9350276842.

Adding to 401841121 its reverse (121148104), we get a palindrome (522989225).

The spelling of 401841121 in words is "four hundred one million, eight hundred forty-one thousand, one hundred twenty-one".