404431030 has 8 divisors (see below), whose sum is σ = 727975872. Its totient is φ = 161772408.

The previous prime is 404430997. The next prime is 404431033. The reversal of 404431030 is 30134404.

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

It is a junction number, because it is equal to n+sod(n) for n = 404430989 and 404431007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404431033) 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, 20221542 + ... + 20221561.

It is an arithmetic number, because the mean of its divisors is an integer number (90996984).

Almost surely, 2^404431030 is an apocalyptic number.

404431030 is a deficient number, since it is larger than the sum of its proper divisors (323544842).

404431030 is a wasteful number, since it uses less digits than its factorization.

404431030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40443110.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 404431030 is about 20110.4706558549. The cubic root of 404431030 is about 739.5169906203.

Adding to 404431030 its reverse (30134404), we get a palindrome (434565434).

The spelling of 404431030 in words is "four hundred four million, four hundred thirty-one thousand, thirty".