400303230 has 64 divisors (see below), whose sum is σ = 986923008. Its totient is φ = 103864320.

The previous prime is 400303207. The next prime is 400303237. The reversal of 400303230 is 32303004.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400303237) 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 31 ways as a sum of consecutive naturals, for example, 271395 + ... + 272865.

It is an arithmetic number, because the mean of its divisors is an integer number (15420672).

Almost surely, 2^400303230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400303230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (493461504).

400303230 is an abundant number, since it is smaller than the sum of its proper divisors (586619778).

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

400303230 is a wasteful number, since it uses less digits than its factorization.

400303230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721.

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 400303230 is about 20007.5793138500. The cubic root of 400303230 is about 736.9924375124.

Adding to 400303230 its reverse (32303004), we get a palindrome (432606234).

The spelling of 400303230 in words is "four hundred million, three hundred three thousand, two hundred thirty".