421113404 has 12 divisors (see below), whose sum is σ = 739669728. Its totient is φ = 209779200.

The previous prime is 421113403. The next prime is 421113533. The reversal of 421113404 is 404311124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421113401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193157 + ... + 195324.

It is an arithmetic number, because the mean of its divisors is an integer number (61639144).

Almost surely, 2^421113404 is an apocalyptic number.

It is an amenable number.

421113404 is a deficient number, since it is larger than the sum of its proper divisors (318556324).

421113404 is a wasteful number, since it uses less digits than its factorization.

421113404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388756 (or 388754 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 421113404 is about 20521.0478289974. The cubic root of 421113404 is about 749.5484119975.

Adding to 421113404 its reverse (404311124), we get a palindrome (825424528).

The spelling of 421113404 in words is "four hundred twenty-one million, one hundred thirteen thousand, four hundred four".