402520202 has 12 divisors (see below), whose sum is σ = 702356850. Its totient is φ = 172508616.

The previous prime is 402520201. The next prime is 402520207. The reversal of 402520202 is 202025204.

It can be written as a sum of positive squares in only one way, i.e., 217533001 + 184987201 = 14749^2 + 13601^2 .

It is not an unprimeable number, because it can be changed into a prime (402520201) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 2053577 + ... + 2053772.

Almost surely, 2^402520202 is an apocalyptic number.

402520202 is a deficient number, since it is larger than the sum of its proper divisors (299836648).

402520202 is a wasteful number, since it uses less digits than its factorization.

402520202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4107365 (or 4107358 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 402520202 is about 20062.9061205001. The cubic root of 402520202 is about 738.3504784776.

Adding to 402520202 its reverse (202025204), we get a palindrome (604545406).

The spelling of 402520202 in words is "four hundred two million, five hundred twenty thousand, two hundred two".