275730990 has 64 divisors (see below), whose sum is σ = 702644544. Its totient is φ = 69009408.

The previous prime is 275730971. The next prime is 275730991. The reversal of 275730990 is 99037572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275730991) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293802 + ... + 294738.

It is an arithmetic number, because the mean of its divisors is an integer number (10978821).

Almost surely, 2^275730990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275730990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (351322272).

275730990 is an abundant number, since it is smaller than the sum of its proper divisors (426913554).

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

275730990 is a wasteful number, since it uses less digits than its factorization.

275730990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 119070, while the sum is 42.

The square root of 275730990 is about 16605.1495024887. The cubic root of 275730990 is about 650.8714071833.

The spelling of 275730990 in words is "two hundred seventy-five million, seven hundred thirty thousand, nine hundred ninety".