275090140 has 48 divisors (see below), whose sum is σ = 633896928. Its totient is φ = 99650304.

The previous prime is 275090117. The next prime is 275090147. The reversal of 275090140 is 41090572.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 275090099 and 275090108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275090147) 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 15 ways as a sum of consecutive naturals, for example, 3799 + ... + 23761.

It is an arithmetic number, because the mean of its divisors is an integer number (13206186).

Almost surely, 2^275090140 is an apocalyptic number.

275090140 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 275090140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316948464).

275090140 is an abundant number, since it is smaller than the sum of its proper divisors (358806788).

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

275090140 is a wasteful number, since it uses less digits than its factorization.

275090140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20038 (or 20036 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 275090140 is about 16585.8415523603. The cubic root of 275090140 is about 650.3667673688.

The spelling of 275090140 in words is "two hundred seventy-five million, ninety thousand, one hundred forty".