248780990 has 8 divisors (see below), whose sum is σ = 447805800. Its totient is φ = 99512392.

The previous prime is 248780971. The next prime is 248781019. The reversal of 248780990 is 99087842.

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

It is a congruent number.

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, 12439040 + ... + 12439059.

It is an arithmetic number, because the mean of its divisors is an integer number (55975725).

Almost surely, 2^248780990 is an apocalyptic number.

248780990 is a deficient number, since it is larger than the sum of its proper divisors (199024810).

248780990 is a wasteful number, since it uses less digits than its factorization.

248780990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24878106.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 248780990 is about 15772.7927140377. The cubic root of 248780990 is about 628.9349519859.

The spelling of 248780990 in words is "two hundred forty-eight million, seven hundred eighty thousand, nine hundred ninety".