420602004 has 48 divisors (see below), whose sum is σ = 1104275200. Its totient is φ = 138423168.

The previous prime is 420602003. The next prime is 420602009. The reversal of 420602004 is 400206024.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420602003) 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, 16117 + ... + 33180.

Almost surely, 2^420602004 is an apocalyptic number.

It is an amenable number.

420602004 is an abundant number, since it is smaller than the sum of its proper divisors (683673196).

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

420602004 is a wasteful number, since it uses less digits than its factorization.

420602004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49389 (or 49381 counting only the distinct ones).

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

The square root of 420602004 is about 20508.5836663579. The cubic root of 420602004 is about 749.2448719640.

Adding to 420602004 its reverse (400206024), we get a palindrome (820808028).

The spelling of 420602004 in words is "four hundred twenty million, six hundred two thousand, four".