20598216 has 16 divisors (see below), whose sum is σ = 51495600. Its totient is φ = 6866064.

The previous prime is 20598211. The next prime is 20598239. The reversal of 20598216 is 61289502.

It is not an unprimeable number, because it can be changed into a prime (20598211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429106 + ... + 429153.

It is an arithmetic number, because the mean of its divisors is an integer number (3218475).

Almost surely, 2^20598216 is an apocalyptic number.

It is an amenable number.

20598216 is an abundant number, since it is smaller than the sum of its proper divisors (30897384).

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

20598216 is a wasteful number, since it uses less digits than its factorization.

20598216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858268 (or 858264 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 20598216 is about 4538.5257518273. The cubic root of 20598216 is about 274.1215650392.

The spelling of 20598216 in words is "twenty million, five hundred ninety-eight thousand, two hundred sixteen".