1240516 has 6 divisors (see below), whose sum is σ = 2170910. Its totient is φ = 620256.

The previous prime is 1240511. The next prime is 1240517. The reversal of 1240516 is 6150421.

It can be written as a sum of positive squares in only one way, i.e., 1110916 + 129600 = 1054^2 + 360^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1240493 and 1240502.

It is not an unprimeable number, because it can be changed into a prime (1240511) 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, 155061 + ... + 155068.

2^1240516 is an apocalyptic number.

It is an amenable number.

1240516 is a deficient number, since it is larger than the sum of its proper divisors (930394).

1240516 is a wasteful number, since it uses less digits than its factorization.

1240516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310133 (or 310131 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1240516 is about 1113.7845393073. The cubic root of 1240516 is about 107.4486071272.

Adding to 1240516 its reverse (6150421), we get a palindrome (7390937).

It can be divided in two parts, 12405 and 16, that added together give a palindrome (12421).

The spelling of 1240516 in words is "one million, two hundred forty thousand, five hundred sixteen".