20540798 has 8 divisors (see below), whose sum is σ = 30887760. Its totient is φ = 10244880.

The previous prime is 20540789. The next prime is 20540827. The reversal of 20540798 is 89704502.

It is a happy number.

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

It is a congruent number.

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, 11738 + ... + 13373.

It is an arithmetic number, because the mean of its divisors is an integer number (3860970).

Almost surely, 2^20540798 is an apocalyptic number.

20540798 is a deficient number, since it is larger than the sum of its proper divisors (10346962).

20540798 is a wasteful number, since it uses less digits than its factorization.

20540798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25522.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 20540798 is about 4532.1957151032. The cubic root of 20540798 is about 273.8666212864.

The spelling of 20540798 in words is "twenty million, five hundred forty thousand, seven hundred ninety-eight".