248580978 has 16 divisors (see below), whose sum is σ = 505312896. Its totient is φ = 81501840.

The previous prime is 248580977. The next prime is 248580989. The reversal of 248580978 is 879085842.

It is a happy number.

248580978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 248580978.

It is not an unprimeable number, because it can be changed into a prime (248580977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 339226 + ... + 339957.

It is an arithmetic number, because the mean of its divisors is an integer number (31582056).

Almost surely, 2^248580978 is an apocalyptic number.

248580978 is an abundant number, since it is smaller than the sum of its proper divisors (256731918).

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

248580978 is a wasteful number, since it uses less digits than its factorization.

248580978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679249.

The product of its (nonzero) digits is 1290240, while the sum is 51.

The square root of 248580978 is about 15766.4510274189. The cubic root of 248580978 is about 628.7663589002.

The spelling of 248580978 in words is "two hundred forty-eight million, five hundred eighty thousand, nine hundred seventy-eight".