404002131 has 8 divisors (see below), whose sum is σ = 580105680. Its totient is φ = 248616672.

The previous prime is 404002099. The next prime is 404002169. The reversal of 404002131 is 131200404.

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

It is not a de Polignac number, because 404002131 - 2⁵ = 404002099 is a prime.

It is a super-2 number, since 2×404002131² = 326435443705082322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 404002131.

It is not an unprimeable number, because it can be changed into a prime (404002031) 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, 5179476 + ... + 5179553.

It is an arithmetic number, because the mean of its divisors is an integer number (72513210).

Almost surely, 2^404002131 is an apocalyptic number.

404002131 is a deficient number, since it is larger than the sum of its proper divisors (176103549).

404002131 is a wasteful number, since it uses less digits than its factorization.

404002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10359045.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 404002131 is about 20099.8042527782. The cubic root of 404002131 is about 739.2554789634.

Adding to 404002131 its reverse (131200404), we get a palindrome (535202535).

The spelling of 404002131 in words is "four hundred four million, two thousand, one hundred thirty-one".