20674706 has 32 divisors (see below), whose sum is σ = 34933248. Its totient is φ = 9112320.

The previous prime is 20674699. The next prime is 20674729. The reversal of 20674706 is 60747602.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 90965 + ... + 91191.

It is an arithmetic number, because the mean of its divisors is an integer number (1091664).

Almost surely, 2^20674706 is an apocalyptic number.

20674706 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20674706 is a deficient number, since it is larger than the sum of its proper divisors (14258542).

20674706 is a wasteful number, since it uses less digits than its factorization.

20674706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 20674706 is about 4546.9446884694. The cubic root of 20674706 is about 274.4604561690.

The spelling of 20674706 in words is "twenty million, six hundred seventy-four thousand, seven hundred six".