1020651288 has 64 divisors (see below), whose sum is σ = 2669436000. Its totient is φ = 324774912.

The previous prime is 1020651271. The next prime is 1020651319. The reversal of 1020651288 is 8821560201.

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 15 ways as a sum of consecutive naturals, for example, 53706 + ... + 70182.

Almost surely, 2^1020651288 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 1020651288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1334718000).

1020651288 is an abundant number, since it is smaller than the sum of its proper divisors (1648784712).

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

1020651288 is a wasteful number, since it uses less digits than its factorization.

1020651288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16604 (or 16600 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1020651288 is about 31947.6335273835. The cubic root of 1020651288 is about 1006.8369127637.

The spelling of 1020651288 in words is "one billion, twenty million, six hundred fifty-one thousand, two hundred eighty-eight".