275280466 has 4 divisors (see below), whose sum is σ = 412920702. Its totient is φ = 137640232.

The previous prime is 275280451. The next prime is 275280487. The reversal of 275280466 is 664082572.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 144841225 + 130439241 = 12035^2 + 11421^2 .

It is a super-2 number, since 2×275280466² = 151558669922354312, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 68820115 + ... + 68820118.

Almost surely, 2^275280466 is an apocalyptic number.

275280466 is a deficient number, since it is larger than the sum of its proper divisors (137640236).

275280466 is a wasteful number, since it uses less digits than its factorization.

275280466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137640235.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 275280466 is about 16591.5781648401. The cubic root of 275280466 is about 650.5167220582.

The spelling of 275280466 in words is "two hundred seventy-five million, two hundred eighty thousand, four hundred sixty-six".