420336513 has 8 divisors (see below), whose sum is σ = 622720800. Its totient is φ = 280224324.

The previous prime is 420336461. The next prime is 420336547. The reversal of 420336513 is 315633024.

It is a happy number.

420336513 is a `hidden beast` number, since 4 + 2 + 0 + 3 + 3 + 651 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-420336513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 15568019 = 420336513 / (4 + 2 + 0 + 3 + 3 + 6 + 5 + 1 + 3).

It is not an unprimeable number, because it can be changed into a prime (420336583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7783983 + ... + 7784036.

It is an arithmetic number, because the mean of its divisors is an integer number (77840100).

Almost surely, 2^420336513 is an apocalyptic number.

It is an amenable number.

420336513 is a deficient number, since it is larger than the sum of its proper divisors (202384287).

420336513 is a wasteful number, since it uses less digits than its factorization.

420336513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15568028 (or 15568022 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 420336513 is about 20502.1099645866. The cubic root of 420336513 is about 749.0871934964.

Adding to 420336513 its reverse (315633024), we get a palindrome (735969537).

The spelling of 420336513 in words is "four hundred twenty million, three hundred thirty-six thousand, five hundred thirteen".