207677140 has 36 divisors (see below), whose sum is σ = 479379348. Its totient is φ = 75518080.

The previous prime is 207677111. The next prime is 207677167. The reversal of 207677140 is 41776702.

It can be written as a sum of positive squares in 2 ways, for example, as 86192656 + 121484484 = 9284^2 + 11022^2 .

It is a junction number, because it is equal to n+sod(n) for n = 207677096 and 207677105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40489 + ... + 45328.

It is an arithmetic number, because the mean of its divisors is an integer number (13316093).

Almost surely, 2^207677140 is an apocalyptic number.

207677140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

207677140 is an abundant number, since it is smaller than the sum of its proper divisors (271702208).

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

207677140 is a wasteful number, since it uses less digits than its factorization.

207677140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85848 (or 85835 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 207677140 is about 14411.0075983604. The cubic root of 207677140 is about 592.1924935565.

The spelling of 207677140 in words is "two hundred seven million, six hundred seventy-seven thousand, one hundred forty".