401121404 has 24 divisors (see below), whose sum is σ = 711903360. Its totient is φ = 197730864.

The previous prime is 401121397. The next prime is 401121419. The reversal of 401121404 is 404121104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212537 + ... + 214415.

It is an arithmetic number, because the mean of its divisors is an integer number (29662640).

Almost surely, 2^401121404 is an apocalyptic number.

It is an amenable number.

401121404 is a deficient number, since it is larger than the sum of its proper divisors (310781956).

401121404 is a wasteful number, since it uses less digits than its factorization.

401121404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2609 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 401121404 is about 20028.0154783244. The cubic root of 401121404 is about 737.4942052212.

Adding to 401121404 its reverse (404121104), we get a palindrome (805242508).

The spelling of 401121404 in words is "four hundred one million, one hundred twenty-one thousand, four hundred four".