404013132 has 36 divisors (see below), whose sum is σ = 1026619776. Its totient is φ = 133963680.

The previous prime is 404013119. The next prime is 404013133. The reversal of 404013132 is 231310404.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×404013132² = 326453221656898848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (404013133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22503 + ... + 36254.

It is an arithmetic number, because the mean of its divisors is an integer number (28517216).

Almost surely, 2^404013132 is an apocalyptic number.

It is an amenable number.

404013132 is an abundant number, since it is smaller than the sum of its proper divisors (622606644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

404013132 is a wasteful number, since it uses less digits than its factorization.

404013132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58958 (or 58953 counting only the distinct ones).

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

The square root of 404013132 is about 20100.0779102968. The cubic root of 404013132 is about 739.2621888914.

Adding to 404013132 its reverse (231310404), we get a palindrome (635323536).

The spelling of 404013132 in words is "four hundred four million, thirteen thousand, one hundred thirty-two".