1021064632 has 48 divisors (see below), whose sum is σ = 2219860080. Its totient is φ = 431316480.

The previous prime is 1021064623. The next prime is 1021064669. The reversal of 1021064632 is 2364601201.

It is a junction number, because it is equal to n+sod(n) for n = 1021064597 and 1021064606.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280488 + ... + 284104.

It is an arithmetic number, because the mean of its divisors is an integer number (46247085).

Almost surely, 2^1021064632 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 1021064632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1109930040).

1021064632 is an abundant number, since it is smaller than the sum of its proper divisors (1198795448).

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

1021064632 is an equidigital number, since it uses as much as digits as its factorization.

1021064632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3772 (or 3697 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1021064632 is about 31954.1019589035. The cubic root of 1021064632 is about 1006.9728109019.

Adding to 1021064632 its reverse (2364601201), we get a palindrome (3385665833).

The spelling of 1021064632 in words is "one billion, twenty-one million, sixty-four thousand, six hundred thirty-two".