4066812 has 18 divisors (see below), whose sum is σ = 10280088. Its totient is φ = 1355592.

The previous prime is 4066807. The next prime is 4066823. The reversal of 4066812 is 2186604.

Added to its reverse (2186604) it gives a triangular number (6253416 = T₃₅₃₆).

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56448 + ... + 56519.

It is an arithmetic number, because the mean of its divisors is an integer number (571116).

Almost surely, 2^4066812 is an apocalyptic number.

It is an amenable number.

4066812 is an abundant number, since it is smaller than the sum of its proper divisors (6213276).

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

4066812 is a wasteful number, since it uses less digits than its factorization.

4066812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112977 (or 112972 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4066812 is about 2016.6338289338. The cubic root of 4066812 is about 159.6190415783.

Adding to 4066812 its reverse (2186604), we get a triangular number (6253416 = T₃₅₃₆).

It can be divided in two parts, 406 and 6812, that multiplied together give a palindrome (2765672).

The spelling of 4066812 in words is "four million, sixty-six thousand, eight hundred twelve".