1240283 has 8 divisors (see below), whose sum is σ = 1382400. Its totient is φ = 1103080.

The previous prime is 1240273. The next prime is 1240307. The reversal of 1240283 is 3820421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1240283 - 2⁶ = 1240219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683 + ... + 1716.

It is an arithmetic number, because the mean of its divisors is an integer number (172800).

2^1240283 is an apocalyptic number.

1240283 is a deficient number, since it is larger than the sum of its proper divisors (142117).

1240283 is a wasteful number, since it uses less digits than its factorization.

1240283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2457.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1240283 is about 1113.6799360678. The cubic root of 1240283 is about 107.4418795254.

The spelling of 1240283 in words is "one million, two hundred forty thousand, two hundred eighty-three".