1228324849 has 4 divisors (see below), whose sum is σ = 1228443136. Its totient is φ = 1228206564.

The previous prime is 1228324847. The next prime is 1228324861. The reversal of 1228324849 is 9484238221.

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 1228324849 - 2¹ = 1228324847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228324843) 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, 41889 + ... + 64894.

It is an arithmetic number, because the mean of its divisors is an integer number (307110784).

Almost surely, 2^1228324849 is an apocalyptic number.

It is an amenable number.

1228324849 is a deficient number, since it is larger than the sum of its proper divisors (118287).

1228324849 is a wasteful number, since it uses less digits than its factorization.

1228324849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118286.

The product of its digits is 221184, while the sum is 43.

The square root of 1228324849 is about 35047.4656573054. The cubic root of 1228324849 is about 1070.9546460243.

The spelling of 1228324849 in words is "one billion, two hundred twenty-eight million, three hundred twenty-four thousand, eight hundred forty-nine".