402121302 has 16 divisors (see below), whose sum is σ = 877355712. Its totient is φ = 121854920.

The previous prime is 402121283. The next prime is 402121319. The reversal of 402121302 is 203121204.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3046308 + ... + 3046439.

It is an arithmetic number, because the mean of its divisors is an integer number (54834732).

Almost surely, 2^402121302 is an apocalyptic number.

402121302 is an abundant number, since it is smaller than the sum of its proper divisors (475234410).

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

402121302 is a wasteful number, since it uses less digits than its factorization.

402121302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6092763.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 402121302 is about 20052.9624245397. The cubic root of 402121302 is about 738.1064945724.

Adding to 402121302 its reverse (203121204), we get a palindrome (605242506).

It can be divided in two parts, 40212 and 1302, that added together give a palindrome (41514).

The spelling of 402121302 in words is "four hundred two million, one hundred twenty-one thousand, three hundred two".