1996622964 has 72 divisors (see below), whose sum is σ = 5862624768. Its totient is φ = 561107520.

The previous prime is 1996622963. The next prime is 1996622989. The reversal of 1996622964 is 4692266991.

It is a happy number.

1996622964 is a `hidden beast` number, since 1 + 9 + 9 + 6 + 622 + 9 + 6 + 4 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1996622964.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996622963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49572 + ... + 80315.

It is an arithmetic number, because the mean of its divisors is an integer number (81425344).

Almost surely, 2^1996622964 is an apocalyptic number.

1996622964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1996622964 is an abundant number, since it is smaller than the sum of its proper divisors (3866001804).

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

1996622964 is a wasteful number, since it uses less digits than its factorization.

1996622964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129965 (or 129960 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 1996622964 is about 44683.5871881388. The cubic root of 1996622964 is about 1259.2115172683.

The spelling of 1996622964 in words is "one billion, nine hundred ninety-six million, six hundred twenty-two thousand, nine hundred sixty-four".