1020662688 has 24 divisors (see below), whose sum is σ = 2679239808. Its totient is φ = 340220864.

The previous prime is 1020662681. The next prime is 1020662719. The reversal of 1020662688 is 8862660201.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (1020662681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5315856 + ... + 5316047.

It is an arithmetic number, because the mean of its divisors is an integer number (111634992).

Almost surely, 2^1020662688 is an apocalyptic number.

It is an amenable number.

1020662688 is an abundant number, since it is smaller than the sum of its proper divisors (1658577120).

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

1020662688 is a wasteful number, since it uses less digits than its factorization.

1020662688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10631916 (or 10631908 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 1020662688 is about 31947.8119438562. The cubic root of 1020662688 is about 1006.8406613173.

The spelling of 1020662688 in words is "one billion, twenty million, six hundred sixty-two thousand, six hundred eighty-eight".