400303004 has 6 divisors (see below), whose sum is σ = 700530264. Its totient is φ = 200151500.

The previous prime is 400303003. The next prime is 400303009.

400303004 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×400303004² = 320484990022848032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 400303004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400303003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50037872 + ... + 50037879.

It is an arithmetic number, because the mean of its divisors is an integer number (116755044).

Almost surely, 2^400303004 is an apocalyptic number.

It is an amenable number.

400303004 is a deficient number, since it is larger than the sum of its proper divisors (300227260).

400303004 is a wasteful number, since it uses less digits than its factorization.

400303004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100075755 (or 100075753 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 400303004 is about 20007.5736659896. The cubic root of 400303004 is about 736.9922988173.

It can be divided in two parts, 40030 and 3004, that added together give a palindrome (43034).

The spelling of 400303004 in words is "four hundred million, three hundred three thousand, four".