420804612 has 24 divisors (see below), whose sum is σ = 1090975200. Its totient is φ = 140268168.

The previous prime is 420804611. The next prime is 420804613. The reversal of 420804612 is 216408024.

420804612 is a `hidden beast` number, since 42 + 0 + 8 + 0 + 4 + 612 = 666.

It is an interprime number because it is at equal distance from previous prime (420804611) and next prime (420804613).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (420804611) 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 7 ways as a sum of consecutive naturals, for example, 1948062 + ... + 1948277.

It is an arithmetic number, because the mean of its divisors is an integer number (45457300).

Almost surely, 2^420804612 is an apocalyptic number.

It is an amenable number.

420804612 is an abundant number, since it is smaller than the sum of its proper divisors (670170588).

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

420804612 is a wasteful number, since it uses less digits than its factorization.

420804612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3896352 (or 3896344 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 420804612 is about 20513.5226618931. The cubic root of 420804612 is about 749.3651587871.

The spelling of 420804612 in words is "four hundred twenty million, eight hundred four thousand, six hundred twelve".