1283976912 has 40 divisors (see below), whose sum is σ = 3331842304. Its totient is φ = 426069504.

The previous prime is 1283976907. The next prime is 1283976913. The reversal of 1283976912 is 2196793821.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283976913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49273 + ... + 70680.

Almost surely, 2^1283976912 is an apocalyptic number.

1283976912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1283976912 is an abundant number, since it is smaller than the sum of its proper divisors (2047865392).

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

1283976912 is a wasteful number, since it uses less digits than its factorization.

1283976912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120187 (or 120181 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 1283976912 is about 35832.6235712653. The cubic root of 1283976912 is about 1086.8903632383.

The spelling of 1283976912 in words is "one billion, two hundred eighty-three million, nine hundred seventy-six thousand, nine hundred twelve".