250995240 has 128 divisors (see below), whose sum is σ = 840672000. Its totient is φ = 66610944.

The previous prime is 250995233. The next prime is 250995253. The reversal of 250995240 is 42599052.

It is a happy number.

It is a super-2 number, since 2×250995240² = 125997221005315200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 250995195 and 250995204.

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, 298741 + ... + 299579.

It is an arithmetic number, because the mean of its divisors is an integer number (6567750).

Almost surely, 2^250995240 is an apocalyptic number.

250995240 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 250995240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (420336000).

250995240 is an abundant number, since it is smaller than the sum of its proper divisors (589676760).

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

250995240 is a wasteful number, since it uses less digits than its factorization.

250995240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136 (or 1126 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 250995240 is about 15842.8292927747. The cubic root of 250995240 is about 630.7953673180.

The spelling of 250995240 in words is "two hundred fifty million, nine hundred ninety-five thousand, two hundred forty".