250042240 has 64 divisors (see below), whose sum is σ = 683163360. Its totient is φ = 85727232.

The previous prime is 250042237. The next prime is 250042271. The reversal of 250042240 is 42240052.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×250042240² = 125042243568435200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23427 + ... + 32386.

Almost surely, 2^250042240 is an apocalyptic number.

250042240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250042240 is an abundant number, since it is smaller than the sum of its proper divisors (433121120).

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

250042240 is an equidigital number, since it uses as much as digits as its factorization.

250042240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55839 (or 55827 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 250042240 is about 15812.7239905084. The cubic root of 250042240 is about 629.9960023262.

Adding to 250042240 its reverse (42240052), we get a palindrome (292282292).

The spelling of 250042240 in words is "two hundred fifty million, forty-two thousand, two hundred forty".