242643934 has 8 divisors (see below), whose sum is σ = 391963320. Its totient is φ = 111989496.

The previous prime is 242643923. The next prime is 242643937. The reversal of 242643934 is 439346242.

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

It is a junction number, because it is equal to n+sod(n) for n = 242643893 and 242643902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242643937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4666204 + ... + 4666255.

It is an arithmetic number, because the mean of its divisors is an integer number (48995415).

Almost surely, 2^242643934 is an apocalyptic number.

242643934 is a deficient number, since it is larger than the sum of its proper divisors (149319386).

242643934 is a wasteful number, since it uses less digits than its factorization.

242643934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9332474.

The product of its digits is 124416, while the sum is 37.

The square root of 242643934 is about 15577.0322590666. The cubic root of 242643934 is about 623.7202048678.

It can be divided in two parts, 2426 and 43934, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 242643934 in words is "two hundred forty-two million, six hundred forty-three thousand, nine hundred thirty-four".