420122562 has 16 divisors (see below), whose sum is σ = 852786912. Its totient is φ = 137950560.

The previous prime is 420122543. The next prime is 420122567. The reversal of 420122562 is 265221024.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (420122567) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 522139 + ... + 522942.

It is an arithmetic number, because the mean of its divisors is an integer number (53299182).

Almost surely, 2^420122562 is an apocalyptic number.

420122562 is an abundant number, since it is smaller than the sum of its proper divisors (432664350).

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

420122562 is a wasteful number, since it uses less digits than its factorization.

420122562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1045153.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 420122562 is about 20496.8915204233. The cubic root of 420122562 is about 748.9600769688.

Adding to 420122562 its reverse (265221024), we get a palindrome (685343586).

The spelling of 420122562 in words is "four hundred twenty million, one hundred twenty-two thousand, five hundred sixty-two".