271770640 has 20 divisors (see below), whose sum is σ = 631866924. Its totient is φ = 108708224.

The previous prime is 271770601. The next prime is 271770641. The reversal of 271770640 is 46077172.

It can be written as a sum of positive squares in 2 ways, for example, as 214798336 + 56972304 = 14656^2 + 7548^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 271770596 and 271770605.

It is not an unprimeable number, because it can be changed into a prime (271770641) 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, 1698487 + ... + 1698646.

Almost surely, 2^271770640 is an apocalyptic number.

271770640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

271770640 is an abundant number, since it is smaller than the sum of its proper divisors (360096284).

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

271770640 is a wasteful number, since it uses less digits than its factorization.

271770640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397146 (or 3397140 counting only the distinct ones).

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

The square root of 271770640 is about 16485.4675396241. The cubic root of 271770640 is about 647.7401920417.

The spelling of 271770640 in words is "two hundred seventy-one million, seven hundred seventy thousand, six hundred forty".