248315730 has 64 divisors (see below), whose sum is σ = 645321600. Its totient is φ = 60788736.

The previous prime is 248315729. The next prime is 248315779. The reversal of 248315730 is 37513842.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 248315691 and 248315700.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73621 + ... + 76919.

It is an arithmetic number, because the mean of its divisors is an integer number (10083150).

Almost surely, 2^248315730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 248315730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322660800).

248315730 is an abundant number, since it is smaller than the sum of its proper divisors (397005870).

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

248315730 is a wasteful number, since it uses less digits than its factorization.

248315730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 248315730 is about 15758.0369970374. The cubic root of 248315730 is about 628.5426378736.

The spelling of 248315730 in words is "two hundred forty-eight million, three hundred fifteen thousand, seven hundred thirty".