430020813 has 16 divisors (see below), whose sum is σ = 586874880. Its totient is φ = 279951216.

The previous prime is 430020803. The next prime is 430020817. The reversal of 430020813 is 318020034.

It is a happy number.

It is not a de Polignac number, because 430020813 - 2⁸ = 430020557 is a prime.

It is a super-2 number, since 2×430020813² = 369835799226361938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 430020813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (430020817) 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, 64356 + ... + 70722.

It is an arithmetic number, because the mean of its divisors is an integer number (36679680).

Almost surely, 2^430020813 is an apocalyptic number.

It is an amenable number.

430020813 is a deficient number, since it is larger than the sum of its proper divisors (156854067).

430020813 is a wasteful number, since it uses less digits than its factorization.

430020813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6896.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 430020813 is about 20736.9431932481. The cubic root of 430020813 is about 754.7964090030.

Adding to 430020813 its reverse (318020034), we get a palindrome (748040847).

The spelling of 430020813 in words is "four hundred thirty million, twenty thousand, eight hundred thirteen".