1283738 has 12 divisors (see below), whose sum is σ = 2046462. Its totient is φ = 603840.

The previous prime is 1283731. The next prime is 1283753. The reversal of 1283738 is 8373821.

It can be written as a sum of positive squares in 3 ways, for example, as 1283689 + 49 = 1133^2 + 7^2 .

It is not an unprimeable number, because it can be changed into a prime (1283731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 533 + ... + 1688.

2^1283738 is an apocalyptic number.

1283738 is a deficient number, since it is larger than the sum of its proper divisors (762724).

1283738 is a wasteful number, since it uses less digits than its factorization.

1283738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2240 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 1283738 is about 1133.0216238007. The cubic root of 1283738 is about 108.6822945812.

The spelling of 1283738 in words is "one million, two hundred eighty-three thousand, seven hundred thirty-eight".