20061992 has 16 divisors (see below), whose sum is σ = 38633460. Its totient is φ = 9759744.

The previous prime is 20061983. The next prime is 20062019. The reversal of 20061992 is 29916002.

It can be written as a sum of positive squares in 2 ways, for example, as 18028516 + 2033476 = 4246^2 + 1426^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33593 + ... + 34184.

Almost surely, 2^20061992 is an apocalyptic number.

It is an amenable number.

20061992 is a deficient number, since it is larger than the sum of its proper divisors (18571468).

20061992 is a wasteful number, since it uses less digits than its factorization.

20061992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67820 (or 67816 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 20061992 is about 4479.0615088431. The cubic root of 20061992 is about 271.7219260209.

Adding to 20061992 its reverse (29916002), we get a palindrome (49977994).

The spelling of 20061992 in words is "twenty million, sixty-one thousand, nine hundred ninety-two".