401440304 has 10 divisors (see below), whose sum is σ = 777790620. Its totient is φ = 200720144.

The previous prime is 401440289. The next prime is 401440309. The reversal of 401440304 is 403044104.

It is a super-2 number, since 2×401440304² = 322308635351224832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401440309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12544994 + ... + 12545025.

It is an arithmetic number, because the mean of its divisors is an integer number (77779062).

Almost surely, 2^401440304 is an apocalyptic number.

It is an amenable number.

401440304 is a deficient number, since it is larger than the sum of its proper divisors (376350316).

401440304 is a wasteful number, since it uses less digits than its factorization.

401440304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25090027 (or 25090021 counting only the distinct ones).

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

The square root of 401440304 is about 20035.9752445445. The cubic root of 401440304 is about 737.6895946145.

Adding to 401440304 its reverse (403044104), we get a palindrome (804484408).

The spelling of 401440304 in words is "four hundred one million, four hundred forty thousand, three hundred four".