1240079 has 4 divisors (see below), whose sum is σ = 1242384. Its totient is φ = 1237776.

The previous prime is 1240039. The next prime is 1240081. The reversal of 1240079 is 9700421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9700421 = 17 ⋅570613.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240079 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240009) 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 3 ways as a sum of consecutive naturals, for example, 134 + ... + 1580.

It is an arithmetic number, because the mean of its divisors is an integer number (310596).

2^1240079 is an apocalyptic number.

1240079 is a deficient number, since it is larger than the sum of its proper divisors (2305).

1240079 is an equidigital number, since it uses as much as digits as its factorization.

1240079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2304.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1240079 is about 1113.5883440482. The cubic root of 1240079 is about 107.4359885727.

The spelling of 1240079 in words is "one million, two hundred forty thousand, seventy-nine".