275030144 has 64 divisors (see below), whose sum is σ = 567103680. Its totient is φ = 132787200.

The previous prime is 275030141. The next prime is 275030179. The reversal of 275030144 is 441030572.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (275030141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481379 + ... + 481949.

It is an arithmetic number, because the mean of its divisors is an integer number (8860995).

Almost surely, 2^275030144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275030144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283551840).

275030144 is an abundant number, since it is smaller than the sum of its proper divisors (292073536).

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

275030144 is an equidigital number, since it uses as much as digits as its factorization.

275030144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 275030144 is about 16584.0328026690. The cubic root of 275030144 is about 650.3194831810.

The spelling of 275030144 in words is "two hundred seventy-five million, thirty thousand, one hundred forty-four".