404253330 has 128 divisors (see below), whose sum is σ = 1116702720. Its totient is φ = 92897280.

The previous prime is 404253307. The next prime is 404253337. The reversal of 404253330 is 33352404.

It is a self number, because there is not a number n which added to its sum of digits gives 404253330.

It is not an unprimeable number, because it can be changed into a prime (404253337) 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 63 ways as a sum of consecutive naturals, for example, 350034 + ... + 351186.

It is an arithmetic number, because the mean of its divisors is an integer number (8724240).

Almost surely, 2^404253330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404253330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (558351360).

404253330 is an abundant number, since it is smaller than the sum of its proper divisors (712449390).

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

404253330 is a wasteful number, since it uses less digits than its factorization.

404253330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 404253330 is about 20106.0520739403. The cubic root of 404253330 is about 739.4086644279.

The spelling of 404253330 in words is "four hundred four million, two hundred fifty-three thousand, three hundred thirty".