249029942842 has 8 divisors (see below), whose sum is σ = 373547150100. Its totient is φ = 124514226144.

The previous prime is 249029942813. The next prime is 249029942911. The reversal of 249029942842 is 248249920942.

It is a Cunningham number, because it is equal to 499029²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 249029942841 + 1 = 499029^2 + 1^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 259534 + ... + 751942.

Almost surely, 2^249029942842 is an apocalyptic number.

249029942842 is a deficient number, since it is larger than the sum of its proper divisors (124517207258).

249029942842 is a wasteful number, since it uses less digits than its factorization.

249029942842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745280.

The product of its (nonzero) digits is 5971968, while the sum is 55.

The spelling of 249029942842 in words is "two hundred forty-nine billion, twenty-nine million, nine hundred forty-two thousand, eight hundred forty-two".