1988252612 has 12 divisors (see below), whose sum is σ = 3684115260. Its totient is φ = 935648256.

The previous prime is 1988252599. The next prime is 1988252639. The reversal of 1988252612 is 2162528891.

It can be written as a sum of positive squares in 2 ways, for example, as 778186816 + 1210065796 = 27896^2 + 34786^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

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, 14619437 + ... + 14619572.

It is an arithmetic number, because the mean of its divisors is an integer number (307009605).

Almost surely, 2^1988252612 is an apocalyptic number.

It is an amenable number.

1988252612 is a deficient number, since it is larger than the sum of its proper divisors (1695862648).

1988252612 is a wasteful number, since it uses less digits than its factorization.

1988252612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29239030 (or 29239028 counting only the distinct ones).

The product of its digits is 138240, while the sum is 44.

The square root of 1988252612 is about 44589.8263284351. The cubic root of 1988252612 is about 1257.4494074322.

The spelling of 1988252612 in words is "one billion, nine hundred eighty-eight million, two hundred fifty-two thousand, six hundred twelve".