4200812 has 48 divisors (see below), whose sum is σ = 9580032. Its totient is φ = 1562880.

The previous prime is 4200809. The next prime is 4200821. The reversal of 4200812 is 2180024.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6788 + ... + 7380.

It is an arithmetic number, because the mean of its divisors is an integer number (199584).

Almost surely, 2^4200812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4200812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4790016).

4200812 is an abundant number, since it is smaller than the sum of its proper divisors (5379220).

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

4200812 is a wasteful number, since it uses less digits than its factorization.

4200812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 636 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 4200812 is about 2049.5882513324. The cubic root of 4200812 is about 161.3532615837.

Adding to 4200812 its reverse (2180024), we get a palindrome (6380836).

The spelling of 4200812 in words is "four million, two hundred thousand, eight hundred twelve".