20860246 has 16 divisors (see below), whose sum is σ = 34930368. Its totient is φ = 9261000.

The previous prime is 20860211. The next prime is 20860247. The reversal of 20860246 is 64206802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20860247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10080 + ... + 11971.

It is an arithmetic number, because the mean of its divisors is an integer number (2183148).

Almost surely, 2^20860246 is an apocalyptic number.

20860246 is a deficient number, since it is larger than the sum of its proper divisors (14070122).

20860246 is a wasteful number, since it uses less digits than its factorization.

20860246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22107.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 20860246 is about 4567.3018293080. The cubic root of 20860246 is about 275.2790379811.

The spelling of 20860246 in words is "twenty million, eight hundred sixty thousand, two hundred forty-six".