250968840 has 64 divisors (see below), whose sum is σ = 760397760. Its totient is φ = 66259200.

The previous prime is 250968827. The next prime is 250968869. The reversal of 250968840 is 48869052.

It is a junction number, because it is equal to n+sod(n) for n = 250968792 and 250968801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1767 + ... + 22473.

It is an arithmetic number, because the mean of its divisors is an integer number (11881215).

Almost surely, 2^250968840 is an apocalyptic number.

250968840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250968840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380198880).

250968840 is an abundant number, since it is smaller than the sum of its proper divisors (509428920).

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

250968840 is a wasteful number, since it uses less digits than its factorization.

250968840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20822 (or 20818 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 250968840 is about 15841.9960863522. The cubic root of 250968840 is about 630.7732505883.

The spelling of 250968840 in words is "two hundred fifty million, nine hundred sixty-eight thousand, eight hundred forty".