2219720 has 32 divisors (see below), whose sum is σ = 5037120. Its totient is φ = 880320.

The previous prime is 2219683. The next prime is 2219731. The reversal of 2219720 is 279122.

2219720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8309 + ... + 8571.

It is an arithmetic number, because the mean of its divisors is an integer number (157410).

2^2219720 is an apocalyptic number.

2219720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2219720 is an abundant number, since it is smaller than the sum of its proper divisors (2817400).

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

2219720 is a wasteful number, since it uses less digits than its factorization.

2219720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 2219720 is about 1489.8724777645. The cubic root of 2219720 is about 130.4465902998.

The spelling of 2219720 in words is "two million, two hundred nineteen thousand, seven hundred twenty".