7228794449 has 4 divisors (see below), whose sum is σ = 7230983664. Its totient is φ = 7226605236.

The previous prime is 7228794409. The next prime is 7228794509. The reversal of 7228794449 is 9444978227.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9444978227 = 31 ⋅304676717.

It is a cyclic number.

It is not a de Polignac number, because 7228794449 - 2⁸ = 7228794193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7228794394 and 7228794403.

It is not an unprimeable number, because it can be changed into a prime (7228794409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1089647 + ... + 1096260.

It is an arithmetic number, because the mean of its divisors is an integer number (1807745916).

Almost surely, 2^7228794449 is an apocalyptic number.

It is an amenable number.

7228794449 is a deficient number, since it is larger than the sum of its proper divisors (2189215).

7228794449 is a wasteful number, since it uses less digits than its factorization.

7228794449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189214.

The product of its digits is 8128512, while the sum is 56.

The square root of 7228794449 is about 85022.3173584442. The cubic root of 7228794449 is about 1933.5494874025.

The spelling of 7228794449 in words is "seven billion, two hundred twenty-eight million, seven hundred ninety-four thousand, four hundred forty-nine".