20782298 has 8 divisors (see below), whose sum is σ = 31298400. Its totient is φ = 10349500.

The previous prime is 20782291. The next prime is 20782303. The reversal of 20782298 is 89228702.

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

It is not an unprimeable number, because it can be changed into a prime (20782291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20198 + ... + 21201.

It is an arithmetic number, because the mean of its divisors is an integer number (3912300).

Almost surely, 2^20782298 is an apocalyptic number.

20782298 is a deficient number, since it is larger than the sum of its proper divisors (10516102).

20782298 is a wasteful number, since it uses less digits than its factorization.

20782298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41652.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 20782298 is about 4558.7605771745. The cubic root of 20782298 is about 274.9357337428.

The spelling of 20782298 in words is "twenty million, seven hundred eighty-two thousand, two hundred ninety-eight".