250200040 has 72 divisors (see below), whose sum is σ = 586629810. Its totient is φ = 96038400.

The previous prime is 250200029. The next prime is 250200073. The reversal of 250200040 is 40002052.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 140327716 + 109872324 = 11846^2 + 10482^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4101610 + ... + 4101670.

Almost surely, 2^250200040 is an apocalyptic number.

250200040 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 250200040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293314905).

250200040 is an abundant number, since it is smaller than the sum of its proper divisors (336429770).

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

250200040 is an equidigital number, since it uses as much as digits as its factorization.

250200040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 250200040 is about 15817.7128561622. The cubic root of 250200040 is about 630.1285032234.

Adding to 250200040 its reverse (40002052), we get a palindrome (290202092).

The spelling of 250200040 in words is "two hundred fifty million, two hundred thousand, forty".