250868740 has 48 divisors (see below), whose sum is σ = 546416640. Its totient is φ = 96647040.

The previous prime is 250868731. The next prime is 250868741. The reversal of 250868740 is 47868052.

It is a junction number, because it is equal to n+sod(n) for n = 250868693 and 250868702.

It is not an unprimeable number, because it can be changed into a prime (250868741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147334 + ... + 149026.

It is an arithmetic number, because the mean of its divisors is an integer number (11383680).

Almost surely, 2^250868740 is an apocalyptic number.

250868740 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 250868740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273208320).

250868740 is an abundant number, since it is smaller than the sum of its proper divisors (295547900).

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

250868740 is a wasteful number, since it uses less digits than its factorization.

250868740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1972 (or 1970 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 250868740 is about 15838.8364471637. The cubic root of 250868740 is about 630.6893772293.

The spelling of 250868740 in words is "two hundred fifty million, eight hundred sixty-eight thousand, seven hundred forty".