1021964712 has 32 divisors (see below), whose sum is σ = 2566082400. Its totient is φ = 339165504.

The previous prime is 1021964711. The next prime is 1021964771. The reversal of 1021964712 is 2174691201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1021964711) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 87478 + ... + 98469.

It is an arithmetic number, because the mean of its divisors is an integer number (80190075).

Almost surely, 2^1021964712 is an apocalyptic number.

1021964712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1021964712 is an abundant number, since it is smaller than the sum of its proper divisors (1544117688).

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

1021964712 is a wasteful number, since it uses less digits than its factorization.

1021964712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186185 (or 186181 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 1021964712 is about 31968.1828072851. The cubic root of 1021964712 is about 1007.2686099690.

The spelling of 1021964712 in words is "one billion, twenty-one million, nine hundred sixty-four thousand, seven hundred twelve".