6224720449 has 4 divisors (see below), whose sum is σ = 6312392640. Its totient is φ = 6137048260.

The previous prime is 6224720401. The next prime is 6224720461. The reversal of 6224720449 is 9440274226.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6224720449 - 2⁹ = 6224719937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6224726449) 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, 43835989 + ... + 43836130.

It is an arithmetic number, because the mean of its divisors is an integer number (1578098160).

Almost surely, 2^6224720449 is an apocalyptic number.

It is an amenable number.

6224720449 is a deficient number, since it is larger than the sum of its proper divisors (87672191).

6224720449 is an equidigital number, since it uses as much as digits as its factorization.

6224720449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87672190.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 6224720449 is about 78896.8975879280. The cubic root of 6224720449 is about 1839.5289091121.

The spelling of 6224720449 in words is "six billion, two hundred twenty-four million, seven hundred twenty thousand, four hundred forty-nine".