1026532540 has 36 divisors (see below), whose sum is σ = 2369514168. Its totient is φ = 373283680.

The previous prime is 1026532537. The next prime is 1026532547. The reversal of 1026532540 is 452356201.

It is a junction number, because it is equal to n+sod(n) for n = 1026532499 and 1026532508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026532547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209674 + ... + 214513.

It is an arithmetic number, because the mean of its divisors is an integer number (65819838).

Almost surely, 2^1026532540 is an apocalyptic number.

1026532540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1026532540 is an abundant number, since it is smaller than the sum of its proper divisors (1342981628).

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

1026532540 is a wasteful number, since it uses less digits than its factorization.

1026532540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424218 (or 424205 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1026532540 is about 32039.5465011601. The cubic root of 1026532540 is about 1008.7670934538.

Adding to 1026532540 its reverse (452356201), we get a palindrome (1478888741).

The spelling of 1026532540 in words is "one billion, twenty-six million, five hundred thirty-two thousand, five hundred forty".