404786748 has 48 divisors (see below), whose sum is σ = 968454144. Its totient is φ = 131530560.

The previous prime is 404786741. The next prime is 404786749. The reversal of 404786748 is 847687404.

It is a happy number.

It is a super-2 number, since 2×404786748² = 327704622712831008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404786697 and 404786706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404786741) 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 15 ways as a sum of consecutive naturals, for example, 154933 + ... + 157523.

It is an arithmetic number, because the mean of its divisors is an integer number (20176128).

Almost surely, 2^404786748 is an apocalyptic number.

It is an amenable number.

404786748 is an abundant number, since it is smaller than the sum of its proper divisors (563667396).

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

404786748 is a wasteful number, since it uses less digits than its factorization.

404786748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2922 (or 2920 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 48.

The square root of 404786748 is about 20119.3128113263. The cubic root of 404786748 is about 739.7337415603.

The spelling of 404786748 in words is "four hundred four million, seven hundred eighty-six thousand, seven hundred forty-eight".