1240332213 has 16 divisors (see below), whose sum is σ = 1682432640. Its totient is φ = 812672256.

The previous prime is 1240332143. The next prime is 1240332229. The reversal of 1240332213 is 3122330421.

It is not a de Polignac number, because 1240332213 - 2¹⁴ = 1240315829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1240332213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240332263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30681 + ... + 58497.

It is an arithmetic number, because the mean of its divisors is an integer number (105152040).

Almost surely, 2^1240332213 is an apocalyptic number.

It is an amenable number.

1240332213 is a deficient number, since it is larger than the sum of its proper divisors (442100427).

1240332213 is a wasteful number, since it uses less digits than its factorization.

1240332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28076.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1240332213 is about 35218.3505150369. The cubic root of 1240332213 is about 1074.4330056321.

Adding to 1240332213 its reverse (3122330421), we get a palindrome (4362662634).

The spelling of 1240332213 in words is "one billion, two hundred forty million, three hundred thirty-two thousand, two hundred thirteen".