402828211 has 4 divisors (see below), whose sum is σ = 411399072. Its totient is φ = 394257352.

The previous prime is 402828193. The next prime is 402828269. The reversal of 402828211 is 112828204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402828211 - 2¹⁵ = 402795443 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 402828211.

It is not an unprimeable number, because it can be changed into a prime (402828271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4285360 + ... + 4285453.

It is an arithmetic number, because the mean of its divisors is an integer number (102849768).

Almost surely, 2^402828211 is an apocalyptic number.

402828211 is a deficient number, since it is larger than the sum of its proper divisors (8570861).

402828211 is an equidigital number, since it uses as much as digits as its factorization.

402828211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8570860.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 402828211 is about 20070.5807339997. The cubic root of 402828211 is about 738.5387593879.

The spelling of 402828211 in words is "four hundred two million, eight hundred twenty-eight thousand, two hundred eleven".