404440130 has 8 divisors (see below), whose sum is σ = 727992252. Its totient is φ = 161776048.

The previous prime is 404440117. The next prime is 404440139. The reversal of 404440130 is 31044404.

It can be written as a sum of positive squares in 2 ways, for example, as 392000401 + 12439729 = 19799^2 + 3527^2 .

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

It is not an unprimeable number, because it can be changed into a prime (404440139) 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, 20221997 + ... + 20222016.

Almost surely, 2^404440130 is an apocalyptic number.

404440130 is a deficient number, since it is larger than the sum of its proper divisors (323552122).

404440130 is a wasteful number, since it uses less digits than its factorization.

404440130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40444020.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 404440130 is about 20110.6969048812. The cubic root of 404440130 is about 739.5225371401.

Adding to 404440130 its reverse (31044404), we get a palindrome (435484534).

The spelling of 404440130 in words is "four hundred four million, four hundred forty thousand, one hundred thirty".