1208687412 has 12 divisors (see below), whose sum is σ = 2820270656. Its totient is φ = 402895800.

The previous prime is 1208687407. The next prime is 1208687423. The reversal of 1208687412 is 2147868021.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 50361964 + ... + 50361987.

Almost surely, 2^1208687412 is an apocalyptic number.

1208687412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1208687412 is an abundant number, since it is smaller than the sum of its proper divisors (1611583244).

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

1208687412 is a wasteful number, since it uses less digits than its factorization.

1208687412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100723958 (or 100723956 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 1208687412 is about 34766.1820164366. The cubic root of 1208687412 is about 1065.2167814567.

The spelling of 1208687412 in words is "one billion, two hundred eight million, six hundred eighty-seven thousand, four hundred twelve".