20006974 has 16 divisors (see below), whose sum is σ = 32421312. Its totient is φ = 9204768.

The previous prime is 20006971. The next prime is 20006983. The reversal of 20006974 is 47960002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20006971) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8667 + ... + 10729.

It is an arithmetic number, because the mean of its divisors is an integer number (2026332).

Almost surely, 2^20006974 is an apocalyptic number.

20006974 is a deficient number, since it is larger than the sum of its proper divisors (12414338).

20006974 is a wasteful number, since it uses less digits than its factorization.

20006974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20006974 is about 4472.9156039434. The cubic root of 20006974 is about 271.4733085737.

Adding to 20006974 its reverse (47960002), we get a palindrome (67966976).

The spelling of 20006974 in words is "twenty million, six thousand, nine hundred seventy-four".