249608378 has 8 divisors (see below), whose sum is σ = 383119968. Its totient is φ = 121901724.

The previous prime is 249608357. The next prime is 249608407. The reversal of 249608378 is 873806942.

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, 1451126 + ... + 1451297.

It is an arithmetic number, because the mean of its divisors is an integer number (47889996).

Almost surely, 2^249608378 is an apocalyptic number.

249608378 is a deficient number, since it is larger than the sum of its proper divisors (133511590).

249608378 is a wasteful number, since it uses less digits than its factorization.

249608378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2902468.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 249608378 is about 15798.9992721058. Note that the first 3 decimals coincide. The cubic root of 249608378 is about 629.6314111690.

The spelling of 249608378 in words is "two hundred forty-nine million, six hundred eight thousand, three hundred seventy-eight".