1027532440 has 64 divisors (see below), whose sum is σ = 2537775360. Its totient is φ = 371329920.

The previous prime is 1027532423. The next prime is 1027532491. The reversal of 1027532440 is 442357201.

It is a junction number, because it is equal to n+sod(n) for n = 1027532399 and 1027532408.

It is a congruent number.

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, 64557 + ... + 78883.

It is an arithmetic number, because the mean of its divisors is an integer number (39652740).

Almost surely, 2^1027532440 is an apocalyptic number.

1027532440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1027532440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1268887680).

1027532440 is an abundant number, since it is smaller than the sum of its proper divisors (1510242920).

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

1027532440 is a wasteful number, since it uses less digits than its factorization.

1027532440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14512 (or 14508 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 1027532440 is about 32055.1468566282. The cubic root of 1027532440 is about 1009.0945189877.

Adding to 1027532440 its reverse (442357201), we get a palindrome (1469889641).

The spelling of 1027532440 in words is "one billion, twenty-seven million, five hundred thirty-two thousand, four hundred forty".