1259240 has 16 divisors (see below), whose sum is σ = 2833380. Its totient is φ = 503680.

The previous prime is 1259231. The next prime is 1259243. The reversal of 1259240 is 429521.

It can be written as a sum of positive squares in 2 ways, for example, as 1119364 + 139876 = 1058^2 + 374^2 .

It is not an unprimeable number, because it can be changed into a prime (1259243) 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, 15701 + ... + 15780.

2^1259240 is an apocalyptic number.

1259240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1259240 is an abundant number, since it is smaller than the sum of its proper divisors (1574140).

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

1259240 is a wasteful number, since it uses less digits than its factorization.

1259240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31492 (or 31488 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1259240 is about 1122.1586340620. The cubic root of 1259240 is about 107.9865095175.

The spelling of 1259240 in words is "one million, two hundred fifty-nine thousand, two hundred forty".