400411121 has 8 divisors (see below), whose sum is σ = 437826144. Its totient is φ = 363165120.

The previous prime is 400411087. The next prime is 400411129. The reversal of 400411121 is 121114004.

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 400411121 - 2¹⁰ = 400410097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400411096 and 400411105.

It is not an unprimeable number, because it can be changed into a prime (400411129) 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 7 ways as a sum of consecutive naturals, for example, 37271 + ... + 46796.

It is an arithmetic number, because the mean of its divisors is an integer number (54728268).

Almost surely, 2^400411121 is an apocalyptic number.

It is an amenable number.

400411121 is a deficient number, since it is larger than the sum of its proper divisors (37415023).

400411121 is a wasteful number, since it uses less digits than its factorization.

400411121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84511.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 400411121 is about 20010.2753854114. The cubic root of 400411121 is about 737.0586437468.

Adding to 400411121 its reverse (121114004), we get a palindrome (521525125).

The spelling of 400411121 in words is "four hundred million, four hundred eleven thousand, one hundred twenty-one".