1208839340 has 24 divisors (see below), whose sum is σ = 2558556672. Its totient is φ = 479727360.

The previous prime is 1208839301. The next prime is 1208839363. The reversal of 1208839340 is 439388021.

It is a super-2 number, since 2×1208839340² = 2922585099863271200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1208839294 and 1208839303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235421 + ... + 240500.

It is an arithmetic number, because the mean of its divisors is an integer number (106606528).

Almost surely, 2^1208839340 is an apocalyptic number.

1208839340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1208839340 is an abundant number, since it is smaller than the sum of its proper divisors (1349717332).

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

1208839340 is a wasteful number, since it uses less digits than its factorization.

1208839340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476057 (or 476055 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 1208839340 is about 34768.3669446812. The cubic root of 1208839340 is about 1065.2614109927.

The spelling of 1208839340 in words is "one billion, two hundred eight million, eight hundred thirty-nine thousand, three hundred forty".