401002504 has 32 divisors (see below), whose sum is σ = 872124480. Its totient is φ = 169291584.

The previous prime is 401002501. The next prime is 401002513. The reversal of 401002504 is 405200104.

It is not an unprimeable number, because it can be changed into a prime (401002501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49687 + ... + 57190.

It is an arithmetic number, because the mean of its divisors is an integer number (27253890).

Almost surely, 2^401002504 is an apocalyptic number.

It is an amenable number.

401002504 is an abundant number, since it is smaller than the sum of its proper divisors (471121976).

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

401002504 is a wasteful number, since it uses less digits than its factorization.

401002504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106957 (or 106953 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 401002504 is about 20025.0469162996. The cubic root of 401002504 is about 737.4213289251.

Adding to 401002504 its reverse (405200104), we get a palindrome (806202608).

The spelling of 401002504 in words is "four hundred one million, two thousand, five hundred four".