275203140 has 144 divisors (see below), whose sum is σ = 835531200. Its totient is φ = 67647488.

The previous prime is 275203133. The next prime is 275203153. The reversal of 275203140 is 41302572.

It is a self number, because there is not a number n which added to its sum of digits gives 275203140.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1022926 + ... + 1023194.

It is an arithmetic number, because the mean of its divisors is an integer number (5802300).

Almost surely, 2^275203140 is an apocalyptic number.

275203140 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 275203140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417765600).

275203140 is an abundant number, since it is smaller than the sum of its proper divisors (560328060).

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

275203140 is a wasteful number, since it uses less digits than its factorization.

275203140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 275203140 is about 16589.2477225461. The cubic root of 275203140 is about 650.4558065279.

The spelling of 275203140 in words is "two hundred seventy-five million, two hundred three thousand, one hundred forty".