402805002 has 32 divisors (see below), whose sum is σ = 815278464. Its totient is φ = 132667200.

The previous prime is 402805001. The next prime is 402805061. The reversal of 402805002 is 200508204.

It is a self number, because there is not a number n which added to its sum of digits gives 402805002.

It is not an unprimeable number, because it can be changed into a prime (402805001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180252 + ... + 182472.

It is an arithmetic number, because the mean of its divisors is an integer number (25477452).

Almost surely, 2^402805002 is an apocalyptic number.

402805002 is an abundant number, since it is smaller than the sum of its proper divisors (412473462).

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

402805002 is a wasteful number, since it uses less digits than its factorization.

402805002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2574.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 402805002 is about 20070.0025411060. The cubic root of 402805002 is about 738.5245754465.

The spelling of 402805002 in words is "four hundred two million, eight hundred five thousand, two".