248638830 has 64 divisors (see below), whose sum is σ = 653073408. Its totient is φ = 60082560.

The previous prime is 248638829. The next prime is 248638903. The reversal of 248638830 is 38836842.

It is a Curzon number.

It is a congruent number.

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, 120084 + ... + 122136.

It is an arithmetic number, because the mean of its divisors is an integer number (10204272).

Almost surely, 2^248638830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 248638830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326536704).

248638830 is an abundant number, since it is smaller than the sum of its proper divisors (404434578).

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

248638830 is a wasteful number, since it uses less digits than its factorization.

248638830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2441.

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 248638830 is about 15768.2855758006. The cubic root of 248638830 is about 628.8151325033.

The spelling of 248638830 in words is "two hundred forty-eight million, six hundred thirty-eight thousand, eight hundred thirty".