420306022 has 8 divisors (see below), whose sum is σ = 630924336. Its totient is φ = 209997912.

The previous prime is 420305993. The next prime is 420306067. The reversal of 420306022 is 220603024.

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, 74133 + ... + 79600.

It is an arithmetic number, because the mean of its divisors is an integer number (78865542).

Almost surely, 2^420306022 is an apocalyptic number.

420306022 is a deficient number, since it is larger than the sum of its proper divisors (210618314).

420306022 is a wasteful number, since it uses less digits than its factorization.

420306022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155102.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 420306022 is about 20501.3663447098. The cubic root of 420306022 is about 749.0690802552.

Adding to 420306022 its reverse (220603024), we get a palindrome (640909046).

The spelling of 420306022 in words is "four hundred twenty million, three hundred six thousand, twenty-two".