400240304 has 20 divisors (see below), whose sum is σ = 775783680. Its totient is φ = 200038080.

The previous prime is 400240303. The next prime is 400240327. The reversal of 400240304 is 403042004.

It is not an unprimeable number, because it can be changed into a prime (400240303) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 60689 + ... + 66959.

It is an arithmetic number, because the mean of its divisors is an integer number (38789184).

Almost surely, 2^400240304 is an apocalyptic number.

It is an amenable number.

400240304 is a deficient number, since it is larger than the sum of its proper divisors (375543376).

400240304 is a wasteful number, since it uses less digits than its factorization.

400240304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10268 (or 10262 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 400240304 is about 20006.0066979895. The cubic root of 400240304 is about 736.9538181085.

Adding to 400240304 its reverse (403042004), we get a palindrome (803282308).

The spelling of 400240304 in words is "four hundred million, two hundred forty thousand, three hundred four".