20704150 has 12 divisors (see below), whose sum is σ = 38509812. Its totient is φ = 8281640.

The previous prime is 20704141. The next prime is 20704171. The reversal of 20704150 is 5140702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 206992 + ... + 207091.

It is an arithmetic number, because the mean of its divisors is an integer number (3209151).

Almost surely, 2^20704150 is an apocalyptic number.

20704150 is a deficient number, since it is larger than the sum of its proper divisors (17805662).

20704150 is a wasteful number, since it uses less digits than its factorization.

20704150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414095 (or 414090 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 20704150 is about 4550.1813150687. The cubic root of 20704150 is about 274.5906858387.

Adding to 20704150 its reverse (5140702), we get a palindrome (25844852).

The spelling of 20704150 in words is "twenty million, seven hundred four thousand, one hundred fifty".