242412813 has 6 divisors (see below), whose sum is σ = 350151854. Its totient is φ = 161608536.

The previous prime is 242412791. The next prime is 242412823. The reversal of 242412813 is 318214242.

242412813 is a `hidden beast` number, since 242 + 412 + 8 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 238795209 + 3617604 = 15453^2 + 1902^2 .

It is not a de Polignac number, because 242412813 - 2⁸ = 242412557 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 (242412823) 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, 13467370 + ... + 13467387.

Almost surely, 2^242412813 is an apocalyptic number.

It is an amenable number.

242412813 is a deficient number, since it is larger than the sum of its proper divisors (107739041).

242412813 is a wasteful number, since it uses less digits than its factorization.

242412813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26934763 (or 26934760 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 242412813 is about 15569.6118448727. The cubic root of 242412813 is about 623.5221085200.

The spelling of 242412813 in words is "two hundred forty-two million, four hundred twelve thousand, eight hundred thirteen".