1208654988 has 24 divisors (see below), whose sum is σ = 2824192560. Its totient is φ = 402313920.

The previous prime is 1208654971. The next prime is 1208655013. The reversal of 1208654988 is 8894568021.

It is a self number, because there is not a number n which added to its sum of digits gives 1208654988.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62523 + ... + 79538.

It is an arithmetic number, because the mean of its divisors is an integer number (117674690).

Almost surely, 2^1208654988 is an apocalyptic number.

It is an amenable number.

1208654988 is an abundant number, since it is smaller than the sum of its proper divisors (1615537572).

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

1208654988 is a wasteful number, since it uses less digits than its factorization.

1208654988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142777 (or 142775 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 51.

The square root of 1208654988 is about 34765.7156980839. The cubic root of 1208654988 is about 1065.2072562761.

The spelling of 1208654988 in words is "one billion, two hundred eight million, six hundred fifty-four thousand, nine hundred eighty-eight".