20650742 has 16 divisors (see below), whose sum is σ = 35538432. Its totient is φ = 8816040.

The previous prime is 20650691. The next prime is 20650753. The reversal of 20650742 is 24705602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1073 + ... + 6515.

It is an arithmetic number, because the mean of its divisors is an integer number (2221152).

Almost surely, 2^20650742 is an apocalyptic number.

20650742 is a deficient number, since it is larger than the sum of its proper divisors (14887690).

20650742 is a wasteful number, since it uses less digits than its factorization.

20650742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 20650742 is about 4544.3087483137. The cubic root of 20650742 is about 274.3543730288.

The spelling of 20650742 in words is "twenty million, six hundred fifty thousand, seven hundred forty-two".