7220436 has 24 divisors (see below), whose sum is σ = 17580864. Its totient is φ = 2302080.

The previous prime is 7220417. The next prime is 7220441. The reversal of 7220436 is 6340227.

7220436 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 12805 + ... + 13356.

It is an arithmetic number, because the mean of its divisors is an integer number (732536).

Almost surely, 2^7220436 is an apocalyptic number.

It is an amenable number.

7220436 is an abundant number, since it is smaller than the sum of its proper divisors (10360428).

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

7220436 is a wasteful number, since it uses less digits than its factorization.

7220436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26191 (or 26189 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 7220436 is about 2687.0868984832. The cubic root of 7220436 is about 193.2803963931.

The spelling of 7220436 in words is "seven million, two hundred twenty thousand, four hundred thirty-six".