402200646 has 16 divisors (see below), whose sum is σ = 804730944. Its totient is φ = 134011944.

The previous prime is 402200641. The next prime is 402200651. The reversal of 402200646 is 646002204.

It is an interprime number because it is at equal distance from previous prime (402200641) and next prime (402200651).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402200641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3861 + ... + 28623.

It is an arithmetic number, because the mean of its divisors is an integer number (50295684).

Almost surely, 2^402200646 is an apocalyptic number.

402200646 is an abundant number, since it is smaller than the sum of its proper divisors (402530298).

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

402200646 is a wasteful number, since it uses less digits than its factorization.

402200646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27475.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 402200646 is about 20054.9406880200. The cubic root of 402200646 is about 738.1550375286.

The spelling of 402200646 in words is "four hundred two million, two hundred thousand, six hundred forty-six".