1252540328 has 64 divisors (see below), whose sum is σ = 2587334400. Its totient is φ = 564929280.

The previous prime is 1252540327. The next prime is 1252540357. The reversal of 1252540328 is 8230452521.

It is a junction number, because it is equal to n+sod(n) for n = 1252540294 and 1252540303.

It is not an unprimeable number, because it can be changed into a prime (1252540321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1135025 + ... + 1136127.

It is an arithmetic number, because the mean of its divisors is an integer number (40427100).

Almost surely, 2^1252540328 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 1252540328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293667200).

1252540328 is an abundant number, since it is smaller than the sum of its proper divisors (1334794072).

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

1252540328 is a wasteful number, since it uses less digits than its factorization.

1252540328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362 (or 1358 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 1252540328 is about 35391.2464883621. The cubic root of 1252540328 is about 1077.9465806750.

Adding to 1252540328 its reverse (8230452521), we get a palindrome (9482992849).

The spelling of 1252540328 in words is "one billion, two hundred fifty-two million, five hundred forty thousand, three hundred twenty-eight".