401326004 has 24 divisors (see below), whose sum is σ = 753056640. Its totient is φ = 186466176.

The previous prime is 401325989. The next prime is 401326027. The reversal of 401326004 is 400623104.

It is a happy number.

It is a super-2 number, since 2×401326004² = 322125122973216032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31982 + ... + 42725.

It is an arithmetic number, because the mean of its divisors is an integer number (31377360).

Almost surely, 2^401326004 is an apocalyptic number.

It is an amenable number.

401326004 is a deficient number, since it is larger than the sum of its proper divisors (351730636).

401326004 is a wasteful number, since it uses less digits than its factorization.

401326004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74807 (or 74805 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 401326004 is about 20033.1226722146. The cubic root of 401326004 is about 737.6195751342.

Adding to 401326004 its reverse (400623104), we get a palindrome (801949108).

The spelling of 401326004 in words is "four hundred one million, three hundred twenty-six thousand, four".