400434303 has 8 divisors (see below), whose sum is σ = 565319088. Its totient is φ = 251252864.

The previous prime is 400434283. The next prime is 400434343. The reversal of 400434303 is 303434004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 400434303 - 2⁵ = 400434271 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400434303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400434343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3925776 + ... + 3925877.

It is an arithmetic number, because the mean of its divisors is an integer number (70664886).

Almost surely, 2^400434303 is an apocalyptic number.

400434303 is a deficient number, since it is larger than the sum of its proper divisors (164884785).

400434303 is a wasteful number, since it uses less digits than its factorization.

400434303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7851673.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 400434303 is about 20010.8546294255. The cubic root of 400434303 is about 737.0728675973.

Adding to 400434303 its reverse (303434004), we get a palindrome (703868307).

The spelling of 400434303 in words is "four hundred million, four hundred thirty-four thousand, three hundred three".