1440259 has 2 divisors, whose sum is σ = 1440260. Its totient is φ = 1440258.

The previous prime is 1440253. The next prime is 1440269. The reversal of 1440259 is 9520441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1440259 - 2¹¹ = 1438211 is a prime.

1440259 is a lucky number.

It is equal to p₁₀₉₉₄₂ and since 1440259 and 109942 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1440253) 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 as a sum of consecutive naturals, namely, 720129 + 720130.

It is an arithmetic number, because the mean of its divisors is an integer number (720130).

2^1440259 is an apocalyptic number.

1440259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440259 is an equidigital number, since it uses as much as digits as its factorization.

1440259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1440259 is about 1200.1079118146. The cubic root of 1440259 is about 112.9310932913.

The spelling of 1440259 in words is "one million, four hundred forty thousand, two hundred fifty-nine".