4212736 has 72 divisors (see below), whose sum is σ = 9803430. Its totient is φ = 1802240.

The previous prime is 4212731. The next prime is 4212739. The reversal of 4212736 is 6372124.

4212736 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3097600 + 1115136 = 1760^2 + 1056^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4212736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4212731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 247800 + ... + 247816.

Almost surely, 2^4212736 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 4212736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4901715).

4212736 is an abundant number, since it is smaller than the sum of its proper divisors (5590694).

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

4212736 is a wasteful number, since it uses less digits than its factorization.

4212736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61 (or 30 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 4212736 is about 2052.4950669855. The cubic root of 4212736 is about 161.5057843781.

The spelling of 4212736 in words is "four million, two hundred twelve thousand, seven hundred thirty-six".