243674742 has 16 divisors (see below), whose sum is σ = 508538880. Its totient is φ = 77693352.

The previous prime is 243674729. The next prime is 243674747. The reversal of 243674742 is 247476342.

It is a self number, because there is not a number n which added to its sum of digits gives 243674742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243674747) 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, 882742 + ... + 883017.

It is an arithmetic number, because the mean of its divisors is an integer number (31783680).

Almost surely, 2^243674742 is an apocalyptic number.

243674742 is an abundant number, since it is smaller than the sum of its proper divisors (264864138).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243674742 is a wasteful number, since it uses less digits than its factorization.

243674742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765787.

The product of its digits is 225792, while the sum is 39.

The square root of 243674742 is about 15610.0846250108. The cubic root of 243674742 is about 624.6021933602.

The spelling of 243674742 in words is "two hundred forty-three million, six hundred seventy-four thousand, seven hundred forty-two".