401404430 has 64 divisors (see below), whose sum is σ = 861622272. Its totient is φ = 131742720.

The previous prime is 401404429. The next prime is 401404439. The reversal of 401404430 is 34404104.

It is a super-2 number, since 2×401404430² = 322251032847249800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401404439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209537 + ... + 211443.

It is an arithmetic number, because the mean of its divisors is an integer number (13462848).

Almost surely, 2^401404430 is an apocalyptic number.

401404430 is an abundant number, since it is smaller than the sum of its proper divisors (460217842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401404430 is a wasteful number, since it uses less digits than its factorization.

401404430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 401404430 is about 20035.0799848665. The cubic root of 401404430 is about 737.6676198530.

Adding to 401404430 its reverse (34404104), we get a palindrome (435808534).

The spelling of 401404430 in words is "four hundred one million, four hundred four thousand, four hundred thirty".