402331353 has 12 divisors (see below), whose sum is σ = 542569008. Its totient is φ = 265191520.

The previous prime is 402331337. The next prime is 402331373. The reversal of 402331353 is 353133204.

It is a happy number.

It is not a de Polignac number, because 402331353 - 2⁴ = 402331337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (402331373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15298 + ... + 32228.

It is an arithmetic number, because the mean of its divisors is an integer number (45214084).

Almost surely, 2^402331353 is an apocalyptic number.

It is an amenable number.

402331353 is a deficient number, since it is larger than the sum of its proper divisors (140237655).

402331353 is an equidigital number, since it uses as much as digits as its factorization.

402331353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17112 (or 17023 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 24.

The square root of 402331353 is about 20058.1991464837. The cubic root of 402331353 is about 738.2349906414.

Adding to 402331353 its reverse (353133204), we get a palindrome (755464557).

The spelling of 402331353 in words is "four hundred two million, three hundred thirty-one thousand, three hundred fifty-three".