1320083400 has 48 divisors (see below), whose sum is σ = 4092260400. Its totient is φ = 352022080.

The previous prime is 1320083381. The next prime is 1320083411. The reversal of 1320083400 is 43800231.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1099470 + ... + 1100669.

It is an arithmetic number, because the mean of its divisors is an integer number (85255425).

Almost surely, 2^1320083400 is an apocalyptic number.

1320083400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320083400 is an abundant number, since it is smaller than the sum of its proper divisors (2772177000).

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

1320083400 is a wasteful number, since it uses less digits than its factorization.

1320083400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200158 (or 2200149 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1320083400 is about 36332.9519857663. The cubic root of 1320083400 is about 1096.9844126700.

Adding to 1320083400 its reverse (43800231), we get a palindrome (1363883631).

The spelling of 1320083400 in words is "one billion, three hundred twenty million, eighty-three thousand, four hundred".