20245798 has 8 divisors (see below), whose sum is σ = 30416760. Its totient is φ = 10106880.

The previous prime is 20245777. The next prime is 20245807. The reversal of 20245798 is 89754202.

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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6363 + ... + 8998.

It is an arithmetic number, because the mean of its divisors is an integer number (3802095).

Almost surely, 2^20245798 is an apocalyptic number.

20245798 is a deficient number, since it is larger than the sum of its proper divisors (10170962).

20245798 is a wasteful number, since it uses less digits than its factorization.

20245798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16022.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 20245798 is about 4499.5330868880. The cubic root of 20245798 is about 272.5492344336.

The spelling of 20245798 in words is "twenty million, two hundred forty-five thousand, seven hundred ninety-eight".