1283472 has 40 divisors (see below), whose sum is σ = 3685280. Its totient is φ = 427680.

The previous prime is 1283441. The next prime is 1283473. The reversal of 1283472 is 2743821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1283473) 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, 1054 + ... + 1917.

It is an arithmetic number, because the mean of its divisors is an integer number (92132).

2^1283472 is an apocalyptic number.

1283472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1283472 is an abundant number, since it is smaller than the sum of its proper divisors (2401808).

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

1283472 is a wasteful number, since it uses less digits than its factorization.

1283472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988 (or 2976 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 1283472 is about 1132.9042324928. The cubic root of 1283472 is about 108.6747874711.

It can be divided in two parts, 128 and 3472, that added together give a square (3600 = 60²).

The spelling of 1283472 in words is "one million, two hundred eighty-three thousand, four hundred seventy-two".