1252193928 has 64 divisors (see below), whose sum is σ = 3204437760. Its totient is φ = 407579136.

The previous prime is 1252193903. The next prime is 1252193941. The reversal of 1252193928 is 8293912521.

It is a self number, because there is not a number n which added to its sum of digits gives 1252193928.

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, 627300 + ... + 629292.

It is an arithmetic number, because the mean of its divisors is an integer number (50069340).

Almost surely, 2^1252193928 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 1252193928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1602218880).

1252193928 is an abundant number, since it is smaller than the sum of its proper divisors (1952243832).

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

1252193928 is a wasteful number, since it uses less digits than its factorization.

1252193928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606 (or 2602 counting only the distinct ones).

The product of its digits is 77760, while the sum is 42.

The square root of 1252193928 is about 35386.3522844613. The cubic root of 1252193928 is about 1077.8471999433.

The spelling of 1252193928 in words is "one billion, two hundred fifty-two million, one hundred ninety-three thousand, nine hundred twenty-eight".