1021020632 has 96 divisors (see below), whose sum is σ = 2131466400. Its totient is φ = 457809408.

The previous prime is 1021020607. The next prime is 1021020659. The reversal of 1021020632 is 2360201201.

It is a self number, because there is not a number n which added to its sum of digits gives 1021020632.

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 23 ways as a sum of consecutive naturals, for example, 6113813 + ... + 6113979.

It is an arithmetic number, because the mean of its divisors is an integer number (22202775).

Almost surely, 2^1021020632 is an apocalyptic number.

It is an amenable number.

1021020632 is an abundant number, since it is smaller than the sum of its proper divisors (1110445768).

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

1021020632 is a wasteful number, since it uses less digits than its factorization.

1021020632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313 (or 290 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1021020632 is about 31953.4134639791. The cubic root of 1021020632 is about 1006.9583464437.

Adding to 1021020632 its reverse (2360201201), we get a palindrome (3381221833).

The spelling of 1021020632 in words is "one billion, twenty-one million, twenty thousand, six hundred thirty-two".