1124828389 has 4 divisors (see below), whose sum is σ = 1125030060. Its totient is φ = 1124626720.

The previous prime is 1124828387. The next prime is 1124828431. The reversal of 1124828389 is 9838284211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9838284211 = 7 ⋅1405469173.

It can be written as a sum of positive squares in 2 ways, for example, as 400680289 + 724148100 = 20017^2 + 26910^2 .

It is a cyclic number.

It is not a de Polignac number, because 1124828389 - 2¹ = 1124828387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124828387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92224 + ... + 103705.

It is an arithmetic number, because the mean of its divisors is an integer number (281257515).

Almost surely, 2^1124828389 is an apocalyptic number.

It is an amenable number.

1124828389 is a deficient number, since it is larger than the sum of its proper divisors (201671).

1124828389 is an equidigital number, since it uses as much as digits as its factorization.

1124828389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201670.

The product of its digits is 221184, while the sum is 46.

The square root of 1124828389 is about 33538.4613391849. The cubic root of 1124828389 is about 1039.9890250938.

The spelling of 1124828389 in words is "one billion, one hundred twenty-four million, eight hundred twenty-eight thousand, three hundred eighty-nine".