1023563532 has 24 divisors (see below), whose sum is σ = 2399639872. Its totient is φ = 339570000.

The previous prime is 1023563521. The next prime is 1023563539. The reversal of 1023563532 is 2353653201.

It is a self number, because there is not a number n which added to its sum of digits gives 1023563532.

It is not an unprimeable number, because it can be changed into a prime (1023563539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 199594 + ... + 204657.

Almost surely, 2^1023563532 is an apocalyptic number.

1023563532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1023563532 is an abundant number, since it is smaller than the sum of its proper divisors (1376076340).

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

1023563532 is a wasteful number, since it uses less digits than its factorization.

1023563532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404469 (or 404467 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 1023563532 is about 31993.1794606288. The cubic root of 1023563532 is about 1007.7936124755.

The spelling of 1023563532 in words is "one billion, twenty-three million, five hundred sixty-three thousand, five hundred thirty-two".