401600504 has 16 divisors (see below), whose sum is σ = 767209320. Its totient is φ = 197011360.

The previous prime is 401600501. The next prime is 401600519. The reversal of 401600504 is 405006104.

It is a happy number.

It is a super-2 number, since 2×401600504² = 322565929626108032, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401600501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473162 + ... + 474009.

Almost surely, 2^401600504 is an apocalyptic number.

It is an amenable number.

401600504 is a deficient number, since it is larger than the sum of its proper divisors (365608816).

401600504 is a wasteful number, since it uses less digits than its factorization.

401600504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947230 (or 947226 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 401600504 is about 20039.9726546720. The cubic root of 401600504 is about 737.7877097890.

Adding to 401600504 its reverse (405006104), we get a palindrome (806606608).

The spelling of 401600504 in words is "four hundred one million, six hundred thousand, five hundred four".