240553213 has 16 divisors (see below), whose sum is σ = 257976576. Its totient is φ = 223517440.

The previous prime is 240553193. The next prime is 240553217. The reversal of 240553213 is 312355042.

It is a cyclic number.

It is not a de Polignac number, because 240553213 - 2⁹ = 240552701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240553217) 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 in 15 ways as a sum of consecutive naturals, for example, 773328 + ... + 773638.

It is an arithmetic number, because the mean of its divisors is an integer number (16123536).

Almost surely, 2^240553213 is an apocalyptic number.

It is an amenable number.

240553213 is a deficient number, since it is larger than the sum of its proper divisors (17423363).

240553213 is a wasteful number, since it uses less digits than its factorization.

240553213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 240553213 is about 15509.7779803581. Note that the first 3 decimals coincide. The cubic root of 240553213 is about 621.9236240626.

The spelling of 240553213 in words is "two hundred forty million, five hundred fifty-three thousand, two hundred thirteen".