1340320100 has 36 divisors (see below), whose sum is σ = 3323995584. Its totient is φ = 459538080.

The previous prime is 1340320087. The next prime is 1340320129. The reversal of 1340320100 is 10230431.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 956672 + ... + 958071.

Almost surely, 2^1340320100 is an apocalyptic number.

1340320100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340320100 is an abundant number, since it is smaller than the sum of its proper divisors (1983675484).

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

1340320100 is a wasteful number, since it uses less digits than its factorization.

1340320100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1914764 (or 1914757 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1340320100 is about 36610.3824071806. The cubic root of 1340320100 is about 1102.5615509914.

Adding to 1340320100 its reverse (10230431), we get a palindrome (1350550531).

The spelling of 1340320100 in words is "one billion, three hundred forty million, three hundred twenty thousand, one hundred".