1283056392 has 16 divisors (see below), whose sum is σ = 3207641040. Its totient is φ = 427685456.

The previous prime is 1283056387. The next prime is 1283056409. The reversal of 1283056392 is 2936503821.

It is a self number, because there is not a number n which added to its sum of digits gives 1283056392.

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, 26730318 + ... + 26730365.

It is an arithmetic number, because the mean of its divisors is an integer number (200477565).

Almost surely, 2^1283056392 is an apocalyptic number.

1283056392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1283056392 is an abundant number, since it is smaller than the sum of its proper divisors (1924584648).

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

1283056392 is a wasteful number, since it uses less digits than its factorization.

1283056392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53460692 (or 53460688 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 1283056392 is about 35819.7765487168. The cubic root of 1283056392 is about 1086.6305601479.

The spelling of 1283056392 in words is "one billion, two hundred eighty-three million, fifty-six thousand, three hundred ninety-two".