275988406 has 4 divisors (see below), whose sum is σ = 413982612. Its totient is φ = 137994202.

The previous prime is 275988403. The next prime is 275988407. The reversal of 275988406 is 604889572.

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

It is a self number, because there is not a number n which added to its sum of digits gives 275988406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275988403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68997100 + ... + 68997103.

It is an arithmetic number, because the mean of its divisors is an integer number (103495653).

Almost surely, 2^275988406 is an apocalyptic number.

275988406 is a deficient number, since it is larger than the sum of its proper divisors (137994206).

275988406 is a wasteful number, since it uses less digits than its factorization.

275988406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137994205.

The product of its (nonzero) digits is 967680, while the sum is 49.

The square root of 275988406 is about 16612.8987837764. The cubic root of 275988406 is about 651.0738902902.

The spelling of 275988406 in words is "two hundred seventy-five million, nine hundred eighty-eight thousand, four hundred six".