275244128 has 48 divisors (see below), whose sum is σ = 567544320. Its totient is φ = 131150976.

The previous prime is 275244103. The next prime is 275244149. The reversal of 275244128 is 821442572.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269603 + ... + 270621.

It is an arithmetic number, because the mean of its divisors is an integer number (11823840).

Almost surely, 2^275244128 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 275244128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (283772160).

275244128 is an abundant number, since it is smaller than the sum of its proper divisors (292300192).

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

275244128 is a wasteful number, since it uses less digits than its factorization.

275244128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1419 (or 1411 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 275244128 is about 16590.4830550530. The cubic root of 275244128 is about 650.4880972921.

The spelling of 275244128 in words is "two hundred seventy-five million, two hundred forty-four thousand, one hundred twenty-eight".