2232720447 has 4 divisors (see below), whose sum is σ = 2976960600. Its totient is φ = 1488480296.

The previous prime is 2232720397. The next prime is 2232720463. The reversal of 2232720447 is 7440272322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2232720447 - 2¹⁴ = 2232704063 is a prime.

It is a super-3 number, since 3×2232720447³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232720487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372120072 + ... + 372120077.

It is an arithmetic number, because the mean of its divisors is an integer number (744240150).

Almost surely, 2^2232720447 is an apocalyptic number.

2232720447 is a deficient number, since it is larger than the sum of its proper divisors (744240153).

2232720447 is an equidigital number, since it uses as much as digits as its factorization.

2232720447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744240152.

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 2232720447 is about 47251.6713672649. The cubic root of 2232720447 is about 1307.0076108680.

Adding to 2232720447 its reverse (7440272322), we get a palindrome (9672992769).

The spelling of 2232720447 in words is "two billion, two hundred thirty-two million, seven hundred twenty thousand, four hundred forty-seven".