248469978 has 16 divisors (see below), whose sum is σ = 497896416. Its totient is φ = 82663920.

The previous prime is 248469971. The next prime is 248469979. The reversal of 248469978 is 879964842.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (248469971) 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, 36453 + ... + 42728.

It is an arithmetic number, because the mean of its divisors is an integer number (31118526).

Almost surely, 2^248469978 is an apocalyptic number.

248469978 is an abundant number, since it is smaller than the sum of its proper divisors (249426438).

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

248469978 is a wasteful number, since it uses less digits than its factorization.

248469978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79709.

The product of its digits is 6967296, while the sum is 57.

The square root of 248469978 is about 15762.9305016548. The cubic root of 248469978 is about 628.6727563281.

The spelling of 248469978 in words is "two hundred forty-eight million, four hundred sixty-nine thousand, nine hundred seventy-eight".