1208111340 has 48 divisors (see below), whose sum is σ = 3529790208. Its totient is φ = 308155584.

The previous prime is 1208111329. The next prime is 1208111351. The reversal of 1208111340 is 431118021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1208111329) and next prime (1208111351).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 436342 + ... + 439101.

It is an arithmetic number, because the mean of its divisors is an integer number (73537296).

Almost surely, 2^1208111340 is an apocalyptic number.

1208111340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1208111340 is an abundant number, since it is smaller than the sum of its proper divisors (2321678868).

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

1208111340 is a wasteful number, since it uses less digits than its factorization.

1208111340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875478 (or 875476 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1208111340 is about 34757.8960813223. The cubic root of 1208111340 is about 1065.0475237229.

Adding to 1208111340 its reverse (431118021), we get a palindrome (1639229361).

The spelling of 1208111340 in words is "one billion, two hundred eight million, one hundred eleven thousand, three hundred forty".