404134441 has 4 divisors (see below), whose sum is σ = 405625984. Its totient is φ = 402642900.

The previous prime is 404134429. The next prime is 404134453. The reversal of 404134441 is 144431404.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (404134429) and next prime (404134453).

It is a cyclic number.

It is not a de Polignac number, because 404134441 - 2⁹ = 404133929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (404134411) 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, 745365 + ... + 745906.

It is an arithmetic number, because the mean of its divisors is an integer number (101406496).

Almost surely, 2^404134441 is an apocalyptic number.

It is an amenable number.

404134441 is a deficient number, since it is larger than the sum of its proper divisors (1491543).

404134441 is a wasteful number, since it uses less digits than its factorization.

404134441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491542.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 404134441 is about 20103.0953089319. The cubic root of 404134441 is about 739.3361717859.

Adding to 404134441 its reverse (144431404), we get a palindrome (548565845).

The spelling of 404134441 in words is "four hundred four million, one hundred thirty-four thousand, four hundred forty-one".