420513307 has 8 divisors (see below), whose sum is σ = 422795520. Its totient is φ = 418237440.

The previous prime is 420513283. The next prime is 420513391. The reversal of 420513307 is 703315024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420513307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420513397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186694 + ... + 188932.

It is an arithmetic number, because the mean of its divisors is an integer number (52849440).

Almost surely, 2^420513307 is an apocalyptic number.

420513307 is a deficient number, since it is larger than the sum of its proper divisors (2282213).

420513307 is a wasteful number, since it uses less digits than its factorization.

420513307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3173.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 420513307 is about 20506.4211163235. The cubic root of 420513307 is about 749.1922010750.

The spelling of 420513307 in words is "four hundred twenty million, five hundred thirteen thousand, three hundred seven".