275640938 has 4 divisors (see below), whose sum is σ = 413461410. Its totient is φ = 137820468.

The previous prime is 275640929. The next prime is 275640949. The reversal of 275640938 is 839046572.

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., 215003569 + 60637369 = 14663^2 + 7787^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68910233 + ... + 68910236.

Almost surely, 2^275640938 is an apocalyptic number.

275640938 is a deficient number, since it is larger than the sum of its proper divisors (137820472).

275640938 is a wasteful number, since it uses less digits than its factorization.

275640938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137820471.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 275640938 is about 16602.4377125770. The cubic root of 275640938 is about 650.8005426378.

The spelling of 275640938 in words is "two hundred seventy-five million, six hundred forty thousand, nine hundred thirty-eight".