248842840 has 16 divisors (see below), whose sum is σ = 559896480. Its totient is φ = 99537120.

The previous prime is 248842831. The next prime is 248842861. The reversal of 248842840 is 48248842.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 6221071 = 248842840 / (2 + 4 + 8 + 8 + 4 + 2 + 8 + 4 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 248842793 and 248842802.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3110496 + ... + 3110575.

It is an arithmetic number, because the mean of its divisors is an integer number (34993530).

Almost surely, 2^248842840 is an apocalyptic number.

248842840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248842840 is an abundant number, since it is smaller than the sum of its proper divisors (311053640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

248842840 is a wasteful number, since it uses less digits than its factorization.

248842840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6221082 (or 6221078 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 40.

The square root of 248842840 is about 15774.7532468815. The cubic root of 248842840 is about 628.9870679770.

The spelling of 248842840 in words is "two hundred forty-eight million, eight hundred forty-two thousand, eight hundred forty".