402802811 has 8 divisors (see below), whose sum is σ = 429216480. Its totient is φ = 376691328.

The previous prime is 402802789. The next prime is 402802823. The reversal of 402802811 is 118208204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-402802811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402801811) 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 7 ways as a sum of consecutive naturals, for example, 72791 + ... + 78128.

It is an arithmetic number, because the mean of its divisors is an integer number (53652060).

Almost surely, 2^402802811 is an apocalyptic number.

402802811 is a deficient number, since it is larger than the sum of its proper divisors (26413669).

402802811 is a wasteful number, since it uses less digits than its factorization.

402802811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151093.

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 402802811 is about 20069.9479570825. The cubic root of 402802811 is about 738.5232364113.

The spelling of 402802811 in words is "four hundred two million, eight hundred two thousand, eight hundred eleven".