250428240 has 160 divisors (see below), whose sum is σ = 867801600. Its totient is φ = 66378240.

The previous prime is 250428239. The next prime is 250428251. The reversal of 250428240 is 42824052.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 580825 + ... + 581255.

It is an arithmetic number, because the mean of its divisors is an integer number (5423760).

Almost surely, 2^250428240 is an apocalyptic number.

250428240 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 250428240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (433900800).

250428240 is an abundant number, since it is smaller than the sum of its proper divisors (617373360).

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

250428240 is a wasteful number, since it uses less digits than its factorization.

250428240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 250428240 is about 15824.9246443703. The cubic root of 250428240 is about 630.3200188196.

The spelling of 250428240 in words is "two hundred fifty million, four hundred twenty-eight thousand, two hundred forty".