404013242 has 8 divisors (see below), whose sum is σ = 607620000. Its totient is φ = 201473244.

The previous prime is 404013229. The next prime is 404013257. The reversal of 404013242 is 242310404.

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

It is a super-2 number, since 2×404013242² = 326453399422701128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265742 + ... + 267257.

It is an arithmetic number, because the mean of its divisors is an integer number (75952500).

Almost surely, 2^404013242 is an apocalyptic number.

404013242 is a deficient number, since it is larger than the sum of its proper divisors (203606758).

404013242 is a wasteful number, since it uses less digits than its factorization.

404013242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533380.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 404013242 is about 20100.0806466044. The cubic root of 404013242 is about 739.2622559840.

Adding to 404013242 its reverse (242310404), we get a palindrome (646323646).

The spelling of 404013242 in words is "four hundred four million, thirteen thousand, two hundred forty-two".