275484220 has 24 divisors (see below), whose sum is σ = 631109808. Its totient is φ = 100176000.

The previous prime is 275484217. The next prime is 275484227. The reversal of 275484220 is 22484572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275484227) 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, 625881 + ... + 626320.

It is an arithmetic number, because the mean of its divisors is an integer number (26296242).

Almost surely, 2^275484220 is an apocalyptic number.

275484220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

275484220 is an abundant number, since it is smaller than the sum of its proper divisors (355625588).

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

275484220 is a wasteful number, since it uses less digits than its factorization.

275484220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252221 (or 1252219 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 34.

The square root of 275484220 is about 16597.7173129319. The cubic root of 275484220 is about 650.6771798603.

The spelling of 275484220 in words is "two hundred seventy-five million, four hundred eighty-four thousand, two hundred twenty".