242666013 has 8 divisors (see below), whose sum is σ = 323671968. Its totient is φ = 161718704.

The previous prime is 242665987. The next prime is 242666023. The reversal of 242666013 is 310666242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242666013 - 2²⁴ = 225888797 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242666023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3870 + ... + 22367.

It is an arithmetic number, because the mean of its divisors is an integer number (40458996).

Almost surely, 2^242666013 is an apocalyptic number.

It is an amenable number.

242666013 is a deficient number, since it is larger than the sum of its proper divisors (81005955).

242666013 is a wasteful number, since it uses less digits than its factorization.

242666013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29323.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 242666013 is about 15577.7409466200. The cubic root of 242666013 is about 623.7391224377.

The spelling of 242666013 in words is "two hundred forty-two million, six hundred sixty-six thousand, thirteen".