249658848 has 120 divisors (see below), whose sum is σ = 746749080. Its totient is φ = 81803520.

The previous prime is 249658831. The next prime is 249658939. The reversal of 249658848 is 848856942.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 249658794 and 249658803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 157323 + ... + 158901.

It is an arithmetic number, because the mean of its divisors is an integer number (6222909).

Almost surely, 2^249658848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 249658848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373374540).

249658848 is an abundant number, since it is smaller than the sum of its proper divisors (497090232).

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

249658848 is a wasteful number, since it uses less digits than its factorization.

249658848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662 (or 1645 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The square root of 249658848 is about 15800.5964444384. The cubic root of 249658848 is about 629.6738447818.

The spelling of 249658848 in words is "two hundred forty-nine million, six hundred fifty-eight thousand, eight hundred forty-eight".