20814270 has 16 divisors (see below), whose sum is σ = 49954320. Its totient is φ = 5550464.

The previous prime is 20814263. The next prime is 20814281. The reversal of 20814270 is 7241802.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20814270.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346875 + ... + 346934.

It is an arithmetic number, because the mean of its divisors is an integer number (3122145).

Almost surely, 2^20814270 is an apocalyptic number.

20814270 is an abundant number, since it is smaller than the sum of its proper divisors (29140050).

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

20814270 is a wasteful number, since it uses less digits than its factorization.

20814270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693819.

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

The square root of 20814270 is about 4562.2658844044. The cubic root of 20814270 is about 275.0766508094.

The spelling of 20814270 in words is "twenty million, eight hundred fourteen thousand, two hundred seventy".