20595742 has 8 divisors (see below), whose sum is σ = 31959000. Its totient is φ = 9942744.

The previous prime is 20595739. The next prime is 20595803. The reversal of 20595742 is 24759502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20595698 and 20595707.

It is a congruent number.

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, 177492 + ... + 177607.

It is an arithmetic number, because the mean of its divisors is an integer number (3994875).

Almost surely, 2^20595742 is an apocalyptic number.

20595742 is a deficient number, since it is larger than the sum of its proper divisors (11363258).

20595742 is a wasteful number, since it uses less digits than its factorization.

20595742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355130.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 20595742 is about 4538.2531881771. The cubic root of 20595742 is about 274.1105899155.

The spelling of 20595742 in words is "twenty million, five hundred ninety-five thousand, seven hundred forty-two".