404010013 has 8 divisors (see below), whose sum is σ = 443658816. Its totient is φ = 364848000.

The previous prime is 404010001. The next prime is 404010031. The reversal of 404010013 is 310010404.

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

It is a de Polignac number, because none of the positive numbers 2^k-404010013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404009975 and 404010002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404010613) 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, 119956 + ... + 123277.

It is an arithmetic number, because the mean of its divisors is an integer number (55457352).

Almost surely, 2^404010013 is an apocalyptic number.

It is an amenable number.

404010013 is a deficient number, since it is larger than the sum of its proper divisors (39648803).

404010013 is a wasteful number, since it uses less digits than its factorization.

404010013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243395.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 404010013 is about 20100.0003233831. Note that the first 3 decimals coincide. The cubic root of 404010013 is about 739.2602865071.

Subtracting from 404010013 its sum of digits (13), we obtain a square (404010000 = 20100²).

Adding to 404010013 its reverse (310010404), we get a palindrome (714020417).

The spelling of 404010013 in words is "four hundred four million, ten thousand, thirteen".