404124071 has 4 divisors (see below), whose sum is σ = 435210552. Its totient is φ = 373037592.

The previous prime is 404124067. The next prime is 404124089. The reversal of 404124071 is 170421404.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 404124071 - 2² = 404124067 is a prime.

It is a super-2 number, since 2×404124071² = 326632529523226082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404124011) 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, 15543221 + ... + 15543246.

It is an arithmetic number, because the mean of its divisors is an integer number (108802638).

Almost surely, 2^404124071 is an apocalyptic number.

404124071 is a deficient number, since it is larger than the sum of its proper divisors (31086481).

404124071 is a wasteful number, since it uses less digits than its factorization.

404124071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31086480.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 404124071 is about 20102.8373867969. The cubic root of 404124071 is about 739.3298479978.

Adding to 404124071 its reverse (170421404), we get a palindrome (574545475).

The spelling of 404124071 in words is "four hundred four million, one hundred twenty-four thousand, seventy-one".