1282687972 has 12 divisors (see below), whose sum is σ = 2254771456. Its totient is φ = 638467560.

The previous prime is 1282687963. The next prime is 1282688041. The reversal of 1282687972 is 2797862821.

It is a happy 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, 718104 + ... + 719887.

Almost surely, 2^1282687972 is an apocalyptic number.

It is an amenable number.

1282687972 is a deficient number, since it is larger than the sum of its proper divisors (972083484).

1282687972 is a wasteful number, since it uses less digits than its factorization.

1282687972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1438218 (or 1438216 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 52.

The square root of 1282687972 is about 35814.6334896785. The cubic root of 1282687972 is about 1086.5265442586.

The spelling of 1282687972 in words is "one billion, two hundred eighty-two million, six hundred eighty-seven thousand, nine hundred seventy-two".