20635741 has 8 divisors (see below), whose sum is σ = 23813504. Its totient is φ = 17515440.

The previous prime is 20635723. The next prime is 20635787. The reversal of 20635741 is 14753602.

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

It is a cyclic number.

It is not a de Polignac number, because 20635741 - 2¹³ = 20627549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20635711) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13590 + ... + 15031.

It is an arithmetic number, because the mean of its divisors is an integer number (2976688).

Almost surely, 2^20635741 is an apocalyptic number.

It is an amenable number.

20635741 is a deficient number, since it is larger than the sum of its proper divisors (3177763).

20635741 is a wasteful number, since it uses less digits than its factorization.

20635741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28731.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 20635741 is about 4542.6579224062. The cubic root of 20635741 is about 274.2879252648.

The spelling of 20635741 in words is "twenty million, six hundred thirty-five thousand, seven hundred forty-one".