20214016 has 27 divisors (see below), whose sum is σ = 40493173. Its totient is φ = 10071040.

The previous prime is 20214013. The next prime is 20214017. The reversal of 20214016 is 61041202.

The square root of 20214016 is 4496.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13660416 + 6553600 = 3696^2 + 2560^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20214013) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 71796 + ... + 72076.

Almost surely, 2^20214016 is an apocalyptic number.

20214016 is the 4496-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20214016

20214016 is an abundant number, since it is smaller than the sum of its proper divisors (20279157).

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

20214016 is an frugal number, since it uses more digits than its factorization.

20214016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The cubic root of 20214016 is about 272.4065431557.

Multiplying 20214016 by its sum of digits (16), we get a square (323424256 = 17984²).

20214016 divided by its sum of digits (16) gives a square (1263376 = 1124²).

Adding to 20214016 its reverse (61041202), we get a palindrome (81255218).

The spelling of 20214016 in words is "twenty million, two hundred fourteen thousand, sixteen".