250768428 has 24 divisors (see below), whose sum is σ = 619546032. Its totient is φ = 78672384.

The previous prime is 250768421. The next prime is 250768487. The reversal of 250768428 is 824867052.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 250768428.

It is not an unprimeable number, because it can be changed into a prime (250768421) 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, 614425 + ... + 614832.

It is an arithmetic number, because the mean of its divisors is an integer number (25814418).

Almost surely, 2^250768428 is an apocalyptic number.

It is an amenable number.

250768428 is an abundant number, since it is smaller than the sum of its proper divisors (368777604).

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

250768428 is a wasteful number, since it uses less digits than its factorization.

250768428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229281 (or 1229279 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 250768428 is about 15835.6694837951. The cubic root of 250768428 is about 630.6053038514.

The spelling of 250768428 in words is "two hundred fifty million, seven hundred sixty-eight thousand, four hundred twenty-eight".