401306004 has 36 divisors (see below), whose sum is σ = 1106632800. Its totient is φ = 121607760.

The previous prime is 401305999. The next prime is 401306051. The reversal of 401306004 is 400603104.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×401306004² = 322093017692896032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 506304 + ... + 507095.

It is an arithmetic number, because the mean of its divisors is an integer number (30739800).

Almost surely, 2^401306004 is an apocalyptic number.

401306004 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

401306004 is an abundant number, since it is smaller than the sum of its proper divisors (705326796).

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

401306004 is a wasteful number, since it uses less digits than its factorization.

401306004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013420 (or 1013415 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 401306004 is about 20032.6234926931. The cubic root of 401306004 is about 737.6073218900.

Adding to 401306004 its reverse (400603104), we get a palindrome (801909108).

The spelling of 401306004 in words is "four hundred one million, three hundred six thousand, four".