402045530 has 16 divisors (see below), whose sum is σ = 725164704. Its totient is φ = 160488720.

The previous prime is 402045521. The next prime is 402045533. The reversal of 402045530 is 35540204.

It is a junction number, because it is equal to n+sod(n) for n = 402045496 and 402045505.

It is not an unprimeable number, because it can be changed into a prime (402045533) 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 7 ways as a sum of consecutive naturals, for example, 36032 + ... + 45851.

It is an arithmetic number, because the mean of its divisors is an integer number (45322794).

Almost surely, 2^402045530 is an apocalyptic number.

402045530 is a deficient number, since it is larger than the sum of its proper divisors (323119174).

402045530 is a wasteful number, since it uses less digits than its factorization.

402045530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82381.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 402045530 is about 20051.0730386182. The cubic root of 402045530 is about 738.0601310180.

Adding to 402045530 its reverse (35540204), we get a palindrome (437585734).

The spelling of 402045530 in words is "four hundred two million, forty-five thousand, five hundred thirty".