420425315 has 4 divisors (see below), whose sum is σ = 504510384. Its totient is φ = 336340248.

The previous prime is 420425311. The next prime is 420425329. The reversal of 420425315 is 513524024.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420425315 - 2² = 420425311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420425311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42042527 + ... + 42042536.

It is an arithmetic number, because the mean of its divisors is an integer number (126127596).

Almost surely, 2^420425315 is an apocalyptic number.

420425315 is a deficient number, since it is larger than the sum of its proper divisors (84085069).

420425315 is an equidigital number, since it uses as much as digits as its factorization.

420425315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84085068.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 420425315 is about 20504.2755297523. The cubic root of 420425315 is about 749.1399415169.

Adding to 420425315 its reverse (513524024), we get a palindrome (933949339).

The spelling of 420425315 in words is "four hundred twenty million, four hundred twenty-five thousand, three hundred fifteen".