1203209988 has 24 divisors (see below), whose sum is σ = 2832338208. Its totient is φ = 397520256.

The previous prime is 1203209977. The next prime is 1203209999. The reversal of 1203209988 is 8899023021.

It is an interprime number because it is at equal distance from previous prime (1203209977) and next prime (1203209999).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442306 + ... + 445017.

It is an arithmetic number, because the mean of its divisors is an integer number (118014092).

Almost surely, 2^1203209988 is an apocalyptic number.

It is an amenable number.

1203209988 is an abundant number, since it is smaller than the sum of its proper divisors (1629128220).

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

1203209988 is a wasteful number, since it uses less digits than its factorization.

1203209988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887443 (or 887441 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1203209988 is about 34687.3173941139. The cubic root of 1203209988 is about 1063.6052592369.

The spelling of 1203209988 in words is "one billion, two hundred three million, two hundred nine thousand, nine hundred eighty-eight".