206147080 has 64 divisors (see below), whose sum is σ = 486777600. Its totient is φ = 78462720.

The previous prime is 206146991. The next prime is 206147087. The reversal of 206147080 is 80741602.

It is not an unprimeable number, because it can be changed into a prime (206147087) 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, 81109 + ... + 83611.

It is an arithmetic number, because the mean of its divisors is an integer number (7605900).

Almost surely, 2^206147080 is an apocalyptic number.

206147080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206147080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243388800).

206147080 is an abundant number, since it is smaller than the sum of its proper divisors (280630520).

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

206147080 is a wasteful number, since it uses less digits than its factorization.

206147080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2614 (or 2610 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 206147080 is about 14357.8229547519. The cubic root of 206147080 is about 590.7345824872.

Adding to 206147080 its reverse (80741602), we get a palindrome (286888682).

It can be divided in two parts, 2061 and 47080, that added together give a triangular number (49141 = T₃₁₃).

The spelling of 206147080 in words is "two hundred six million, one hundred forty-seven thousand, eighty".