1023985250 has 32 divisors (see below), whose sum is σ = 1963673712. Its totient is φ = 399600000.

The previous prime is 1023985247. The next prime is 1023985267. The reversal of 1023985250 is 525893201.

It can be written as a sum of positive squares in 8 ways, for example, as 43731769 + 980253481 = 6613^2 + 31309^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1023985250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39701 + ... + 60200.

Almost surely, 2^1023985250 is an apocalyptic number.

1023985250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1023985250 is a deficient number, since it is larger than the sum of its proper divisors (939688462).

1023985250 is an equidigital number, since it uses as much as digits as its factorization.

1023985250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99959 (or 99949 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 1023985250 is about 31999.7695304201. The cubic root of 1023985250 is about 1007.9320003522.

The spelling of 1023985250 in words is "one billion, twenty-three million, nine hundred eighty-five thousand, two hundred fifty".