402530043320 has 64 divisors (see below), whose sum is σ = 933790999680. Its totient is φ = 156050620416.

The previous prime is 402530043277. The next prime is 402530043323. The reversal of 402530043320 is 23340035204.

It is a self number, because there is not a number n which added to its sum of digits gives 402530043320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402530043323) 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 15 ways as a sum of consecutive naturals, for example, 148784 + ... + 909503.

It is an arithmetic number, because the mean of its divisors is an integer number (14590484370).

Almost surely, 2^402530043320 is an apocalyptic number.

402530043320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402530043320 is an abundant number, since it is smaller than the sum of its proper divisors (531260956360).

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

402530043320 is a wasteful number, since it uses less digits than its factorization.

402530043320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058592 (or 1058588 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 26.

Adding to 402530043320 its reverse (23340035204), we get a palindrome (425870078524).

The spelling of 402530043320 in words is "four hundred two billion, five hundred thirty million, forty-three thousand, three hundred twenty".