420422130 has 32 divisors (see below), whose sum is σ = 1121126400. Its totient is φ = 112112496.

The previous prime is 420422117. The next prime is 420422131. The reversal of 420422130 is 31224024.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (420422131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778290 + ... + 778829.

It is an arithmetic number, because the mean of its divisors is an integer number (35035200).

Almost surely, 2^420422130 is an apocalyptic number.

420422130 is an abundant number, since it is smaller than the sum of its proper divisors (700704270).

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

420422130 is a wasteful number, since it uses less digits than its factorization.

420422130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557135 (or 1557129 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 420422130 is about 20504.1978628768. The cubic root of 420422130 is about 749.1380497686.

Adding to 420422130 its reverse (31224024), we get a palindrome (451646154).

The spelling of 420422130 in words is "four hundred twenty million, four hundred twenty-two thousand, one hundred thirty".