420204012 has 24 divisors (see below), whose sum is σ = 980851200. Its totient is φ = 140014416.

The previous prime is 420203999. The next prime is 420204023. The reversal of 420204012 is 210402024.

It is a super-2 number, since 2×420204012² = 353142823401792288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420203982 and 420204000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37789 + ... + 47627.

It is an arithmetic number, because the mean of its divisors is an integer number (40868800).

Almost surely, 2^420204012 is an apocalyptic number.

It is an amenable number.

420204012 is an abundant number, since it is smaller than the sum of its proper divisors (560647188).

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

420204012 is a wasteful number, since it uses less digits than its factorization.

420204012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13405 (or 13403 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 420204012 is about 20498.8783107759. The cubic root of 420204012 is about 749.0084746365.

Adding to 420204012 its reverse (210402024), we get a palindrome (630606036).

The spelling of 420204012 in words is "four hundred twenty million, two hundred four thousand, twelve".