1020749796 has 96 divisors (see below), whose sum is σ = 2936102400. Its totient is φ = 304054560.

The previous prime is 1020749789. The next prime is 1020749797. The reversal of 1020749796 is 6979470201.

It is not an unprimeable number, because it can be changed into a prime (1020749797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62811 + ... + 77373.

It is an arithmetic number, because the mean of its divisors is an integer number (30584400).

Almost surely, 2^1020749796 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 1020749796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468051200).

1020749796 is an abundant number, since it is smaller than the sum of its proper divisors (1915352604).

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

1020749796 is a wasteful number, since it uses less digits than its factorization.

1020749796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14646 (or 14638 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 1020749796 is about 31949.1752006214. The cubic root of 1020749796 is about 1006.8693032909.

The spelling of 1020749796 in words is "one billion, twenty million, seven hundred forty-nine thousand, seven hundred ninety-six".