420610122 has 12 divisors (see below), whose sum is σ = 911321970. Its totient is φ = 140203368.

The previous prime is 420610061. The next prime is 420610123. The reversal of 420610122 is 221016024.

420610122 is a `hidden beast` number, since 42 + 0 + 610 + 12 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 258277041 + 162333081 = 16071^2 + 12741^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 23367229 = 420610122 / (4 + 2 + 0 + 6 + 1 + 0 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 420610095 and 420610104.

It is not an unprimeable number, because it can be changed into a prime (420610123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11683597 + ... + 11683632.

Almost surely, 2^420610122 is an apocalyptic number.

420610122 is an abundant number, since it is smaller than the sum of its proper divisors (490711848).

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

420610122 is a wasteful number, since it uses less digits than its factorization.

420610122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23367237 (or 23367234 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 420610122 is about 20508.7815825319. The cubic root of 420610122 is about 749.2496923015.

Adding to 420610122 its reverse (221016024), we get a palindrome (641626146).

The spelling of 420610122 in words is "four hundred twenty million, six hundred ten thousand, one hundred twenty-two".