250631928 has 64 divisors (see below), whose sum is σ = 698148000. Its totient is φ = 83310336.

The previous prime is 250631881. The next prime is 250631939. The reversal of 250631928 is 829136052.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 250631892 and 250631901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86926 + ... + 89762.

Almost surely, 2^250631928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250631928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349074000).

250631928 is an abundant number, since it is smaller than the sum of its proper divisors (447516072).

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

250631928 is a wasteful number, since it uses less digits than its factorization.

250631928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3261 (or 3251 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 250631928 is about 15831.3590067309. The cubic root of 250631928 is about 630.4908646090.

The spelling of 250631928 in words is "two hundred fifty million, six hundred thirty-one thousand, nine hundred twenty-eight".