248909842 has 16 divisors (see below), whose sum is σ = 406569600. Its totient is φ = 113838480.

The previous prime is 248909839. The next prime is 248909873.

248909842 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×248909842² = 123912218888929928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 248909792 and 248909801.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111834 + ... + 114037.

It is an arithmetic number, because the mean of its divisors is an integer number (25410600).

Almost surely, 2^248909842 is an apocalyptic number.

248909842 is a deficient number, since it is larger than the sum of its proper divisors (157659758).

248909842 is a wasteful number, since it uses less digits than its factorization.

248909842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225921.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 248909842 is about 15776.8768138691. The cubic root of 248909842 is about 629.0435153980.

The spelling of 248909842 in words is "two hundred forty-eight million, nine hundred nine thousand, eight hundred forty-two".