242670213 has 6 divisors (see below), whose sum is σ = 350523654. Its totient is φ = 161780136.

The previous prime is 242670151. The next prime is 242670269. The reversal of 242670213 is 312076242.

It can be written as a sum of positive squares in only one way, i.e., 242331489 + 338724 = 15567^2 + 582^2 .

It is not a de Polignac number, because 242670213 - 2⁹ = 242669701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242670283) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13481670 + ... + 13481687.

It is an arithmetic number, because the mean of its divisors is an integer number (58420609).

Almost surely, 2^242670213 is an apocalyptic number.

It is an amenable number.

242670213 is a deficient number, since it is larger than the sum of its proper divisors (107853441).

242670213 is a wasteful number, since it uses less digits than its factorization.

242670213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26963363 (or 26963360 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 242670213 is about 15577.8757537734. The cubic root of 242670213 is about 623.7427209215.

The spelling of 242670213 in words is "two hundred forty-two million, six hundred seventy thousand, two hundred thirteen".