1340220300 has 72 divisors (see below), whose sum is σ = 3972318672. Its totient is φ = 348672000.

The previous prime is 1340220293. The next prime is 1340220311. The reversal of 1340220300 is 30220431.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1340220300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42181 + ... + 66780.

Almost surely, 2^1340220300 is an apocalyptic number.

1340220300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340220300 is an abundant number, since it is smaller than the sum of its proper divisors (2632098372).

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

1340220300 is a wasteful number, since it uses less digits than its factorization.

1340220300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109019 (or 109012 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1340220300 is about 36609.0193804751. The cubic root of 1340220300 is about 1102.5341847988.

Adding to 1340220300 its reverse (30220431), we get a palindrome (1370440731).

The spelling of 1340220300 in words is "one billion, three hundred forty million, two hundred twenty thousand, three hundred".