1323746220 has 48 divisors (see below), whose sum is σ = 3741147648. Its totient is φ = 349698240.

The previous prime is 1323746219. The next prime is 1323746227. The reversal of 1323746220 is 226473231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1323746227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96676 + ... + 109515.

It is an arithmetic number, because the mean of its divisors is an integer number (77940576).

Almost surely, 2^1323746220 is an apocalyptic number.

1323746220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323746220 is an abundant number, since it is smaller than the sum of its proper divisors (2417401428).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323746220 is a wasteful number, since it uses less digits than its factorization.

1323746220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206310 (or 206308 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 1323746220 is about 36383.3233776135. The cubic root of 1323746220 is about 1097.9980723321.

The spelling of 1323746220 in words is "one billion, three hundred twenty-three million, seven hundred forty-six thousand, two hundred twenty".