404240474 has 8 divisors (see below), whose sum is σ = 661484448. Its totient is φ = 183745660.

The previous prime is 404240471. The next prime is 404240491. The reversal of 404240474 is 474042404.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (404240471) by changing a digit.

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, 9187262 + ... + 9187305.

It is an arithmetic number, because the mean of its divisors is an integer number (82685556).

Almost surely, 2^404240474 is an apocalyptic number.

404240474 is a deficient number, since it is larger than the sum of its proper divisors (257243974).

404240474 is a wasteful number, since it uses less digits than its factorization.

404240474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18374580.

The product of its (nonzero) digits is 14336, while the sum is 29.

The square root of 404240474 is about 20105.7323666660. The cubic root of 404240474 is about 739.4008261593.

Adding to 404240474 its reverse (474042404), we get a palindrome (878282878).

The spelling of 404240474 in words is "four hundred four million, two hundred forty thousand, four hundred seventy-four".