20298646 has 16 divisors (see below), whose sum is σ = 32631984. Its totient is φ = 9435904.

The previous prime is 20298643. The next prime is 20298667. The reversal of 20298646 is 64689202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20298643) 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, 775 + ... + 6418.

It is an arithmetic number, because the mean of its divisors is an integer number (2039499).

Almost surely, 2^20298646 is an apocalyptic number.

20298646 is a deficient number, since it is larger than the sum of its proper divisors (12333338).

20298646 is a wasteful number, since it uses less digits than its factorization.

20298646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7295.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 20298646 is about 4505.4018688681. The cubic root of 20298646 is about 272.7861752439.

The spelling of 20298646 in words is "twenty million, two hundred ninety-eight thousand, six hundred forty-six".