275530390 has 32 divisors (see below), whose sum is σ = 525960864. Its totient is φ = 103564800.

The previous prime is 275530361. The next prime is 275530391. The reversal of 275530390 is 93035572.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275530391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189165 + ... + 190615.

It is an arithmetic number, because the mean of its divisors is an integer number (16436277).

Almost surely, 2^275530390 is an apocalyptic number.

275530390 is a deficient number, since it is larger than the sum of its proper divisors (250430474).

275530390 is a wasteful number, since it uses less digits than its factorization.

275530390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2592.

The product of its (nonzero) digits is 28350, while the sum is 34.

The square root of 275530390 is about 16599.1081085702. The cubic root of 275530390 is about 650.7135280854.

The spelling of 275530390 in words is "two hundred seventy-five million, five hundred thirty thousand, three hundred ninety".