420425922 has 16 divisors (see below), whose sum is σ = 960973632. Its totient is φ = 120121680.

The previous prime is 420425911. The next prime is 420425923. The reversal of 420425922 is 229524024.

It is a self number, because there is not a number n which added to its sum of digits gives 420425922.

It is not an unprimeable number, because it can be changed into a prime (420425923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5005029 + ... + 5005112.

It is an arithmetic number, because the mean of its divisors is an integer number (60060852).

Almost surely, 2^420425922 is an apocalyptic number.

420425922 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

420425922 is an abundant number, since it is smaller than the sum of its proper divisors (540547710).

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

420425922 is a wasteful number, since it uses less digits than its factorization.

420425922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010153.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 420425922 is about 20504.2903315379. The cubic root of 420425922 is about 749.1403020469.

Adding to 420425922 its reverse (229524024), we get a palindrome (649949946).

The spelling of 420425922 in words is "four hundred twenty million, four hundred twenty-five thousand, nine hundred twenty-two".