404132013 has 6 divisors (see below), whose sum is σ = 583746254. Its totient is φ = 269421336.

The previous prime is 404131969. The next prime is 404132051. The reversal of 404132013 is 310231404.

It can be written as a sum of positive squares in only one way, i.e., 298494729 + 105637284 = 17277^2 + 10278^2 .

It is not a de Polignac number, because 404132013 - 2²⁰ = 403083437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404132513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22451770 + ... + 22451787.

Almost surely, 2^404132013 is an apocalyptic number.

It is an amenable number.

404132013 is a deficient number, since it is larger than the sum of its proper divisors (179614241).

404132013 is a wasteful number, since it uses less digits than its factorization.

404132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44903563 (or 44903560 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 404132013 is about 20103.0349201308. The cubic root of 404132013 is about 739.3346911632.

Adding to 404132013 its reverse (310231404), we get a palindrome (714363417).

The spelling of 404132013 in words is "four hundred four million, one hundred thirty-two thousand, thirteen".