250343040 has 128 divisors (see below), whose sum is σ = 832809600. Its totient is φ = 63844352.

The previous prime is 250342991. The next prime is 250343057. The reversal of 250343040 is 40343052.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 250342998 and 250343016.

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, 41326 + ... + 46994.

It is an arithmetic number, because the mean of its divisors is an integer number (6506325).

Almost surely, 2^250343040 is an apocalyptic number.

250343040 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 250343040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (416404800).

250343040 is an abundant number, since it is smaller than the sum of its proper divisors (582466560).

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

250343040 is a wasteful number, since it uses less digits than its factorization.

250343040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5714 (or 5702 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 250343040 is about 15822.2324594224. The cubic root of 250343040 is about 630.2485288031.

Adding to 250343040 its reverse (40343052), we get a palindrome (290686092).

The spelling of 250343040 in words is "two hundred fifty million, three hundred forty-three thousand, forty".