1996622972 has 12 divisors (see below), whose sum is σ = 3614576280. Its totient is φ = 963886896.

The previous prime is 1996622963. The next prime is 1996622989. The reversal of 1996622972 is 2792266991.

It is a super-2 number, since 2×1996622972² = 7973006584636225568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8606018 + ... + 8606249.

It is an arithmetic number, because the mean of its divisors is an integer number (301214690).

Almost surely, 2^1996622972 is an apocalyptic number.

It is an amenable number.

1996622972 is a deficient number, since it is larger than the sum of its proper divisors (1617953308).

1996622972 is a wasteful number, since it uses less digits than its factorization.

1996622972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17212300 (or 17212298 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 53.

The square root of 1996622972 is about 44683.5872776571. The cubic root of 1996622972 is about 1259.2115189500.

The spelling of 1996622972 in words is "one billion, nine hundred ninety-six million, six hundred twenty-two thousand, nine hundred seventy-two".