404221302 has 24 divisors (see below), whose sum is σ = 876278520. Its totient is φ = 134668800.

The previous prime is 404221289. The next prime is 404221339. The reversal of 404221302 is 203122404.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37302 + ... + 46902.

It is an arithmetic number, because the mean of its divisors is an integer number (36511605).

Almost surely, 2^404221302 is an apocalyptic number.

404221302 is an abundant number, since it is smaller than the sum of its proper divisors (472057218).

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

404221302 is a wasteful number, since it uses less digits than its factorization.

404221302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11948 (or 11945 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 404221302 is about 20105.2555815637. The cubic root of 404221302 is about 739.3891367338.

Adding to 404221302 its reverse (203122404), we get a palindrome (607343706).

The spelling of 404221302 in words is "four hundred four million, two hundred twenty-one thousand, three hundred two".