420838502 has 16 divisors (see below), whose sum is σ = 763875360. Its totient is φ = 169749888.

The previous prime is 420838489. The next prime is 420838529. The reversal of 420838502 is 205838024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883877 + ... + 884352.

It is an arithmetic number, because the mean of its divisors is an integer number (47742210).

Almost surely, 2^420838502 is an apocalyptic number.

420838502 is a deficient number, since it is larger than the sum of its proper divisors (343036858).

420838502 is a wasteful number, since it uses less digits than its factorization.

420838502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1768255.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 420838502 is about 20514.3486857370. The cubic root of 420838502 is about 749.3852752519.

The spelling of 420838502 in words is "four hundred twenty million, eight hundred thirty-eight thousand, five hundred two".