1988662012 has 12 divisors (see below), whose sum is σ = 3507562240. Its totient is φ = 986501376.

The previous prime is 1988662001. The next prime is 1988662033. The reversal of 1988662012 is 2102668891.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1988662012.

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, 1956837 + ... + 1957852.

Almost surely, 2^1988662012 is an apocalyptic number.

It is an amenable number.

1988662012 is a deficient number, since it is larger than the sum of its proper divisors (1518900228).

1988662012 is a wasteful number, since it uses less digits than its factorization.

1988662012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914820 (or 3914818 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 1988662012 is about 44594.4168254278. The cubic root of 1988662012 is about 1257.5357084140.

The spelling of 1988662012 in words is "one billion, nine hundred eighty-eight million, six hundred sixty-two thousand, twelve".