206177340 has 24 divisors (see below), whose sum is σ = 577296720. Its totient is φ = 54980608.

The previous prime is 206177243. The next prime is 206177347. The reversal of 206177340 is 43771602.

206177340 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

206177340 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 206177298 and 206177307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206177347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1718085 + ... + 1718204.

It is an arithmetic number, because the mean of its divisors is an integer number (24054030).

Almost surely, 2^206177340 is an apocalyptic number.

206177340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206177340 is an abundant number, since it is smaller than the sum of its proper divisors (371119380).

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

206177340 is a wasteful number, since it uses less digits than its factorization.

206177340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3436301 (or 3436299 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 206177340 is about 14358.8766970122. The cubic root of 206177340 is about 590.7634854011.

It can be divided in two parts, 2061 and 77340, that added together give a triangular number (79401 = T₃₉₈).

The spelling of 206177340 in words is "two hundred six million, one hundred seventy-seven thousand, three hundred forty".