248655140 has 12 divisors (see below), whose sum is σ = 522175836. Its totient is φ = 99462048.

The previous prime is 248655103. The next prime is 248655163. The reversal of 248655140 is 41556842.

It can be written as a sum of positive squares in 2 ways, for example, as 198415396 + 50239744 = 14086^2 + 7088^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 248655140.

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, 6216359 + ... + 6216398.

It is an arithmetic number, because the mean of its divisors is an integer number (43514653).

Almost surely, 2^248655140 is an apocalyptic number.

248655140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

248655140 is an abundant number, since it is smaller than the sum of its proper divisors (273520696).

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

248655140 is a wasteful number, since it uses less digits than its factorization.

248655140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12432766 (or 12432764 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 248655140 is about 15768.8027446601. The cubic root of 248655140 is about 628.8288816974.

The spelling of 248655140 in words is "two hundred forty-eight million, six hundred fifty-five thousand, one hundred forty".