4309812 has 36 divisors (see below), whose sum is σ = 11733540. Its totient is φ = 1325952.

The previous prime is 4309787. The next prime is 4309817. The reversal of 4309812 is 2189034.

It can be written as a sum of positive squares in 2 ways, for example, as 646416 + 3663396 = 804^2 + 1914^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4309817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4137 + ... + 5072.

Almost surely, 2^4309812 is an apocalyptic number.

It is an amenable number.

4309812 is an abundant number, since it is smaller than the sum of its proper divisors (7423728).

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

4309812 is a wasteful number, since it uses less digits than its factorization.

4309812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9232 (or 9227 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4309812 is about 2076.0086705021. The cubic root of 4309812 is about 162.7369261869.

The spelling of 4309812 in words is "four million, three hundred nine thousand, eight hundred twelve".