1240213214 has 4 divisors (see below), whose sum is σ = 1860319824. Its totient is φ = 620106606.

The previous prime is 1240213213. The next prime is 1240213229. The reversal of 1240213214 is 4123120421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4123120421 = 7 ⋅589017203.

It is a super-3 number, since 3×1240213214³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240213213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 310053302 + ... + 310053305.

It is an arithmetic number, because the mean of its divisors is an integer number (465079956).

Almost surely, 2^1240213214 is an apocalyptic number.

1240213214 is a deficient number, since it is larger than the sum of its proper divisors (620106610).

1240213214 is an equidigital number, since it uses as much as digits as its factorization.

1240213214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620106609.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1240213214 is about 35216.6610285529. The cubic root of 1240213214 is about 1074.3986437246.

Adding to 1240213214 its reverse (4123120421), we get a palindrome (5363333635).

The spelling of 1240213214 in words is "one billion, two hundred forty million, two hundred thirteen thousand, two hundred fourteen".