20748210 has 32 divisors (see below), whose sum is σ = 56909952. Its totient is φ = 4742400.

The previous prime is 20748199. The next prime is 20748223. The reversal of 20748210 is 1284702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49191 + ... + 49610.

It is an arithmetic number, because the mean of its divisors is an integer number (1778436).

Almost surely, 2^20748210 is an apocalyptic number.

20748210 is an abundant number, since it is smaller than the sum of its proper divisors (36161742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20748210 is a wasteful number, since it uses less digits than its factorization.

20748210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98818.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 20748210 is about 4555.0203073093. The cubic root of 20748210 is about 274.7853310926.

The spelling of 20748210 in words is "twenty million, seven hundred forty-eight thousand, two hundred ten".