1252888028 has 48 divisors (see below), whose sum is σ = 2553211584. Its totient is φ = 526832640.

The previous prime is 1252888003. The next prime is 1252888093. The reversal of 1252888028 is 8208882521.

It is a self number, because there is not a number n which added to its sum of digits gives 1252888028.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1012226 + ... + 1013462.

It is an arithmetic number, because the mean of its divisors is an integer number (53191908).

Almost surely, 2^1252888028 is an apocalyptic number.

It is an amenable number.

1252888028 is an abundant number, since it is smaller than the sum of its proper divisors (1300323556).

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

1252888028 is a wasteful number, since it uses less digits than its factorization.

1252888028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902 (or 1900 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 44.

The square root of 1252888028 is about 35396.1583791236. The cubic root of 1252888028 is about 1078.0463159469.

The spelling of 1252888028 in words is "one billion, two hundred fifty-two million, eight hundred eighty-eight thousand, twenty-eight".