250240040 has 32 divisors (see below), whose sum is σ = 564480360. Its totient is φ = 99840000.

The previous prime is 250240027. The next prime is 250240049. The reversal of 250240040 is 40042052.

250240040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 244547044 + 5692996 = 15638^2 + 2386^2 .

It is not an unprimeable number, because it can be changed into a prime (250240049) 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, 8240 + ... + 23840.

Almost surely, 2^250240040 is an apocalyptic number.

250240040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250240040 is an abundant number, since it is smaller than the sum of its proper divisors (314240320).

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

250240040 is a wasteful number, since it uses less digits than its factorization.

250240040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16013 (or 16009 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 250240040 is about 15818.9772109324. The cubic root of 250240040 is about 630.1620814183.

Adding to 250240040 its reverse (40042052), we get a palindrome (290282092).

The spelling of 250240040 in words is "two hundred fifty million, two hundred forty thousand, forty".