20541242 has 8 divisors (see below), whose sum is σ = 32433600. Its totient is φ = 9730044.

The previous prime is 20541233. The next prime is 20541259. The reversal of 20541242 is 24214502.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270242 + ... + 270317.

It is an arithmetic number, because the mean of its divisors is an integer number (4054200).

Almost surely, 2^20541242 is an apocalyptic number.

20541242 is a deficient number, since it is larger than the sum of its proper divisors (11892358).

20541242 is a wasteful number, since it uses less digits than its factorization.

20541242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540580.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 20541242 is about 4532.2446977188. The cubic root of 20541242 is about 273.8685945285.

Adding to 20541242 its reverse (24214502), we get a palindrome (44755744).

The spelling of 20541242 in words is "twenty million, five hundred forty-one thousand, two hundred forty-two".