250117240 has 32 divisors (see below), whose sum is σ = 575855280. Its totient is φ = 97719552.

The previous prime is 250117223. The next prime is 250117247. The reversal of 250117240 is 42711052.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250117247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70989 + ... + 74428.

Almost surely, 2^250117240 is an apocalyptic number.

250117240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250117240 is an abundant number, since it is smaller than the sum of its proper divisors (325738040).

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

250117240 is a wasteful number, since it uses less digits than its factorization.

250117240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145471 (or 145467 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 250117240 is about 15815.0953206106. The cubic root of 250117240 is about 630.0589849870.

Adding to 250117240 its reverse (42711052), we get a palindrome (292828292).

The spelling of 250117240 in words is "two hundred fifty million, one hundred seventeen thousand, two hundred forty".