421130404 has 6 divisors (see below), whose sum is σ = 736978214. Its totient is φ = 210565200.

The previous prime is 421130401. The next prime is 421130429. The reversal of 421130404 is 404031124.

It can be written as a sum of positive squares in only one way, i.e., 384552100 + 36578304 = 19610^2 + 6048^2 .

It is not an unprimeable number, because it can be changed into a prime (421130401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52641297 + ... + 52641304.

Almost surely, 2^421130404 is an apocalyptic number.

It is an amenable number.

421130404 is a deficient number, since it is larger than the sum of its proper divisors (315847810).

421130404 is a wasteful number, since it uses less digits than its factorization.

421130404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105282605 (or 105282603 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 421130404 is about 20521.4620336856. The cubic root of 421130404 is about 749.5584980783.

Adding to 421130404 its reverse (404031124), we get a palindrome (825161528).

The spelling of 421130404 in words is "four hundred twenty-one million, one hundred thirty thousand, four hundred four".