242455213 has 32 divisors (see below), whose sum is σ = 339720192. Its totient is φ = 166795200.

The previous prime is 242455177. The next prime is 242455217. The reversal of 242455213 is 312554242.

It is not a de Polignac number, because 242455213 - 2¹⁷ = 242324141 is a prime.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242455217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17758 + ... + 28288.

It is an arithmetic number, because the mean of its divisors is an integer number (10616256).

Almost surely, 2^242455213 is an apocalyptic number.

242455213 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

242455213 is a deficient number, since it is larger than the sum of its proper divisors (97264979).

242455213 is a wasteful number, since it uses less digits than its factorization.

242455213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10585.

The product of its digits is 9600, while the sum is 28.

The square root of 242455213 is about 15570.9734120896. The cubic root of 242455213 is about 623.5584594536.

The spelling of 242455213 in words is "two hundred forty-two million, four hundred fifty-five thousand, two hundred thirteen".