404402411 has 8 divisors (see below), whose sum is σ = 466662144. Its totient is φ = 343264680.

The previous prime is 404402387. The next prime is 404402437. The reversal of 404402411 is 114204404.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 404402411 - 2¹⁴ = 404386027 is a prime.

It is a super-2 number, since 2×404402411² = 327082620045225842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404404411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279725 + ... + 281166.

It is an arithmetic number, because the mean of its divisors is an integer number (58332768).

Almost surely, 2^404402411 is an apocalyptic number.

404402411 is a deficient number, since it is larger than the sum of its proper divisors (62259733).

404402411 is a wasteful number, since it uses less digits than its factorization.

404402411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561001.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 404402411 is about 20109.7590985074. The cubic root of 404402411 is about 739.4995465780.

Adding to 404402411 its reverse (114204404), we get a palindrome (518606815).

The spelling of 404402411 in words is "four hundred four million, four hundred two thousand, four hundred eleven".