420122670 has 32 divisors (see below), whose sum is σ = 1099958400. Its totient is φ = 101847840.

The previous prime is 420122639. The next prime is 420122671. The reversal of 420122670 is 76221024.

It is a self number, because there is not a number n which added to its sum of digits gives 420122670.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420122671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636220 + ... + 636879.

It is an arithmetic number, because the mean of its divisors is an integer number (34373700).

Almost surely, 2^420122670 is an apocalyptic number.

420122670 is an abundant number, since it is smaller than the sum of its proper divisors (679835730).

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

420122670 is a wasteful number, since it uses less digits than its factorization.

420122670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273120.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 420122670 is about 20496.8941549689. The cubic root of 420122670 is about 748.9601411466.

Adding to 420122670 its reverse (76221024), we get a palindrome (496343694).

The spelling of 420122670 in words is "four hundred twenty million, one hundred twenty-two thousand, six hundred seventy".