250415040 has 56 divisors (see below), whose sum is σ = 795070800. Its totient is φ = 66777088.

The previous prime is 250415027. The next prime is 250415047. The reversal of 250415040 is 40514052.

250415040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 250414998 and 250415016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250415047) 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, 129465 + ... + 131384.

Almost surely, 2^250415040 is an apocalyptic number.

250415040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

250415040 is an abundant number, since it is smaller than the sum of its proper divisors (544655760).

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

250415040 is a wasteful number, since it uses less digits than its factorization.

250415040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260869 (or 260859 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 250415040 is about 15824.5075752770. The cubic root of 250415040 is about 630.3089439631.

Adding to 250415040 its reverse (40514052), we get a palindrome (290929092).

The spelling of 250415040 in words is "two hundred fifty million, four hundred fifteen thousand, forty".