401155504 has 10 divisors (see below), whose sum is σ = 777238820. Its totient is φ = 200577744.

The previous prime is 401155501. The next prime is 401155523. The reversal of 401155504 is 405551104.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (401155501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12536094 + ... + 12536125.

It is an arithmetic number, because the mean of its divisors is an integer number (77723882).

Almost surely, 2^401155504 is an apocalyptic number.

It is an amenable number.

401155504 is a deficient number, since it is larger than the sum of its proper divisors (376083316).

401155504 is a wasteful number, since it uses less digits than its factorization.

401155504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25072227 (or 25072221 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 401155504 is about 20028.8667677430. The cubic root of 401155504 is about 737.5151031667.

The spelling of 401155504 in words is "four hundred one million, one hundred fifty-five thousand, five hundred four".