20314220 has 24 divisors (see below), whose sum is σ = 43361808. Its totient is φ = 7992000.

The previous prime is 20314219. The next prime is 20314237. The reversal of 20314220 is 2241302.

It is a junction number, because it is equal to n+sod(n) for n = 20314195 and 20314204.

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, 7106 + ... + 9545.

It is an arithmetic number, because the mean of its divisors is an integer number (1806742).

Almost surely, 2^20314220 is an apocalyptic number.

20314220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20314220 is an abundant number, since it is smaller than the sum of its proper divisors (23047588).

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

20314220 is a wasteful number, since it uses less digits than its factorization.

20314220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16721 (or 16719 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20314220 is about 4507.1299071582. The cubic root of 20314220 is about 272.8559218638.

Adding to 20314220 its reverse (2241302), we get a palindrome (22555522).

The spelling of 20314220 in words is "twenty million, three hundred fourteen thousand, two hundred twenty".