20520214 has 32 divisors (see below), whose sum is σ = 36471456. Its totient is φ = 8536320.

The previous prime is 20520211. The next prime is 20520221. The reversal of 20520214 is 41202502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20520211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44674 + ... + 45130.

It is an arithmetic number, because the mean of its divisors is an integer number (1139733).

Almost surely, 2^20520214 is an apocalyptic number.

20520214 is a deficient number, since it is larger than the sum of its proper divisors (15951242).

20520214 is a wasteful number, since it uses less digits than its factorization.

20520214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 20520214 is about 4529.9242819279. The cubic root of 20520214 is about 273.7751098364.

Adding to 20520214 its reverse (41202502), we get a palindrome (61722716).

The spelling of 20520214 in words is "twenty million, five hundred twenty thousand, two hundred fourteen".