1240066 has 4 divisors (see below), whose sum is σ = 1860102. Its totient is φ = 620032.

The previous prime is 1240039. The next prime is 1240081. The reversal of 1240066 is 6600421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1147041 + 93025 = 1071^2 + 305^2 .

It is a plaindrome in base 13.

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310015 + ... + 310018.

2^1240066 is an apocalyptic number.

1240066 is a deficient number, since it is larger than the sum of its proper divisors (620036).

1240066 is an equidigital number, since it uses as much as digits as its factorization.

1240066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620035.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1240066 is about 1113.5825070465. The cubic root of 1240066 is about 107.4356131470.

Adding to 1240066 its reverse (6600421), we get a palindrome (7840487).

The spelling of 1240066 in words is "one million, two hundred forty thousand, sixty-six".