400302003 has 8 divisors (see below), whose sum is σ = 533894400. Its totient is φ = 266788808.

The previous prime is 400301971. The next prime is 400302053. The reversal of 400302003 is 300203004.

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 400302003 - 2⁵ = 400301971 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 400302003.

It is not an unprimeable number, because it can be changed into a prime (400302053) 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, 6783 + ... + 29096.

It is an arithmetic number, because the mean of its divisors is an integer number (66736800).

Almost surely, 2^400302003 is an apocalyptic number.

400302003 is a deficient number, since it is larger than the sum of its proper divisors (133592397).

400302003 is a wasteful number, since it uses less digits than its factorization.

400302003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39601.

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 400302003 is about 20007.5486504469. The cubic root of 400302003 is about 736.9916845077.

Adding to 400302003 its reverse (300203004), we get a palindrome (700505007).

The spelling of 400302003 in words is "four hundred million, three hundred two thousand, three".