402441330 has 32 divisors (see below), whose sum is σ = 967546944. Its totient is φ = 107130176.

The previous prime is 402441317. The next prime is 402441331. The reversal of 402441330 is 33144204.

It is a junction number, because it is equal to n+sod(n) for n = 402441297 and 402441306.

It is not an unprimeable number, because it can be changed into a prime (402441331) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 6184 + ... + 29036.

It is an arithmetic number, because the mean of its divisors is an integer number (30235842).

Almost surely, 2^402441330 is an apocalyptic number.

402441330 is an abundant number, since it is smaller than the sum of its proper divisors (565105614).

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

402441330 is a wasteful number, since it uses less digits than its factorization.

402441330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23450.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 402441330 is about 20060.9404066709. The cubic root of 402441330 is about 738.3022498565.

Adding to 402441330 its reverse (33144204), we get a palindrome (435585534).

It can be divided in two parts, 4024 and 41330, that added together give a palindrome (45354).

The spelling of 402441330 in words is "four hundred two million, four hundred forty-one thousand, three hundred thirty".