275671220 has 96 divisors (see below), whose sum is σ = 661118976. Its totient is φ = 95644800.

The previous prime is 275671217. The next prime is 275671223. The reversal of 275671220 is 22176572.

It is an interprime number because it is at equal distance from previous prime (275671217) and next prime (275671223).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275671223) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 565817 + ... + 566303.

It is an arithmetic number, because the mean of its divisors is an integer number (6886656).

Almost surely, 2^275671220 is an apocalyptic number.

275671220 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 275671220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330559488).

275671220 is an abundant number, since it is smaller than the sum of its proper divisors (385447756).

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

275671220 is a wasteful number, since it uses less digits than its factorization.

275671220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 275671220 is about 16603.3496620411. The cubic root of 275671220 is about 650.8243741491.

The spelling of 275671220 in words is "two hundred seventy-five million, six hundred seventy-one thousand, two hundred twenty".