249423714242 has 16 divisors (see below), whose sum is σ = 393183333312. Its totient is φ = 118519374960.

The previous prime is 249423714229. The next prime is 249423714251. The reversal of 249423714242 is 242417324942.

It is a junction number, because it is equal to n+sod(n) for n = 249423714193 and 249423714202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39189734 + ... + 39196097.

It is an arithmetic number, because the mean of its divisors is an integer number (24573958332).

Almost surely, 2^249423714242 is an apocalyptic number.

249423714242 is a deficient number, since it is larger than the sum of its proper divisors (143759619070).

249423714242 is a wasteful number, since it uses less digits than its factorization.

249423714242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78385913.

The product of its digits is 774144, while the sum is 44.

The spelling of 249423714242 in words is "two hundred forty-nine billion, four hundred twenty-three million, seven hundred fourteen thousand, two hundred forty-two".