249078293 has 8 divisors (see below), whose sum is σ = 260107200. Its totient is φ = 238066048.

The previous prime is 249078283. The next prime is 249078299. The reversal of 249078293 is 392870942.

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

It is a cyclic number.

It is not a de Polignac number, because 249078293 - 2⁶ = 249078229 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 (249078299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33893 + ... + 40581.

It is an arithmetic number, because the mean of its divisors is an integer number (32513400).

Almost surely, 2^249078293 is an apocalyptic number.

249078293 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

249078293 is a deficient number, since it is larger than the sum of its proper divisors (11028907).

249078293 is a wasteful number, since it uses less digits than its factorization.

249078293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8331.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 249078293 is about 15782.2144517175. The cubic root of 249078293 is about 629.1853861970.

The spelling of 249078293 in words is "two hundred forty-nine million, seventy-eight thousand, two hundred ninety-three".