1323838845 has 24 divisors (see below), whose sum is σ = 2622462336. Its totient is φ = 605183328.

The previous prime is 1323838843. The next prime is 1323838861. The reversal of 1323838845 is 5488383231.

It is not a de Polignac number, because 1323838845 - 2¹ = 1323838843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1323838845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323838843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2101017 + ... + 2101646.

It is an arithmetic number, because the mean of its divisors is an integer number (109269264).

Almost surely, 2^1323838845 is an apocalyptic number.

1323838845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1323838845 is a deficient number, since it is larger than the sum of its proper divisors (1298623491).

1323838845 is a wasteful number, since it uses less digits than its factorization.

1323838845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4202681 (or 4202678 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 1323838845 is about 36384.5962599559. The cubic root of 1323838845 is about 1098.0236813947.

The spelling of 1323838845 in words is "one billion, three hundred twenty-three million, eight hundred thirty-eight thousand, eight hundred forty-five".