420000502 has 8 divisors (see below), whose sum is σ = 630089496. Its totient is φ = 209970672.

The previous prime is 420000457. The next prime is 420000551. The reversal of 420000502 is 205000024.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14793 + ... + 32539.

It is an arithmetic number, because the mean of its divisors is an integer number (78761187).

Almost surely, 2^420000502 is an apocalyptic number.

420000502 is a deficient number, since it is larger than the sum of its proper divisors (210088994).

420000502 is a wasteful number, since it uses less digits than its factorization.

420000502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29582.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 420000502 is about 20493.9137794615. The cubic root of 420000502 is about 748.8875370879.

Adding to 420000502 its reverse (205000024), we get a palindrome (625000526).

The spelling of 420000502 in words is "four hundred twenty million, five hundred two", and thus it is an aban number.