420503346 has 32 divisors (see below), whose sum is σ = 935248320. Its totient is φ = 140048352.

The previous prime is 420503327. The next prime is 420503351. The reversal of 420503346 is 643305024.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 79686 + ... + 84798.

It is an arithmetic number, because the mean of its divisors is an integer number (29226510).

Almost surely, 2^420503346 is an apocalyptic number.

420503346 is an abundant number, since it is smaller than the sum of its proper divisors (514744974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420503346 is a wasteful number, since it uses less digits than its factorization.

420503346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6647 (or 6641 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 420503346 is about 20506.1782397403. The cubic root of 420503346 is about 749.1862854775.

The spelling of 420503346 in words is "four hundred twenty million, five hundred three thousand, three hundred forty-six".