1283078472 has 32 divisors (see below), whose sum is σ = 3454442880. Its totient is φ = 394793280.

The previous prime is 1283078449. The next prime is 1283078473. The reversal of 1283078472 is 2748703821.

It is not an unprimeable number, because it can be changed into a prime (1283078473) 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, 2055904 + ... + 2056527.

It is an arithmetic number, because the mean of its divisors is an integer number (107951340).

Almost surely, 2^1283078472 is an apocalyptic number.

1283078472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1283078472 is an abundant number, since it is smaller than the sum of its proper divisors (2171364408).

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

1283078472 is a wasteful number, since it uses less digits than its factorization.

1283078472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112453 (or 4112449 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 42.

The square root of 1283078472 is about 35820.0847570187. The cubic root of 1283078472 is about 1086.6367933541.

The spelling of 1283078472 in words is "one billion, two hundred eighty-three million, seventy-eight thousand, four hundred seventy-two".