1340113220 has 12 divisors (see below), whose sum is σ = 2814237804. Its totient is φ = 536045280.

The previous prime is 1340113211. The next prime is 1340113231. The reversal of 1340113220 is 223110431.

It can be written as a sum of positive squares in 2 ways, for example, as 287370304 + 1052742916 = 16952^2 + 32446^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33502811 + ... + 33502850.

It is an arithmetic number, because the mean of its divisors is an integer number (234519817).

Almost surely, 2^1340113220 is an apocalyptic number.

1340113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340113220 is an abundant number, since it is smaller than the sum of its proper divisors (1474124584).

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

1340113220 is a wasteful number, since it uses less digits than its factorization.

1340113220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67005670 (or 67005668 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1340113220 is about 36607.5568701327. The cubic root of 1340113220 is about 1102.5048208440.

Adding to 1340113220 its reverse (223110431), we get a palindrome (1563223651).

The spelling of 1340113220 in words is "one billion, three hundred forty million, one hundred thirteen thousand, two hundred twenty".