1240299 has 16 divisors (see below), whose sum is σ = 1866240. Its totient is φ = 813960.

The previous prime is 1240273. The next prime is 1240307. The reversal of 1240299 is 9920421.

It is not a de Polignac number, because 1240299 - 2¹² = 1236203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1240219) 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 15 ways as a sum of consecutive naturals, for example, 1594 + ... + 2240.

It is an arithmetic number, because the mean of its divisors is an integer number (116640).

2^1240299 is an apocalyptic number.

1240299 is a deficient number, since it is larger than the sum of its proper divisors (625941).

1240299 is an equidigital number, since it uses as much as digits as its factorization.

1240299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 727 (or 721 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 1240299 is about 1113.6871194371. The cubic root of 1240299 is about 107.4423415335.

The spelling of 1240299 in words is "one million, two hundred forty thousand, two hundred ninety-nine".