275820738 has 16 divisors (see below), whose sum is σ = 575626176. Its totient is φ = 87942800.

The previous prime is 275820731. The next prime is 275820751. The reversal of 275820738 is 837028572.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 275820738.

It is not an unprimeable number, because it can be changed into a prime (275820731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999213 + ... + 999488.

It is an arithmetic number, because the mean of its divisors is an integer number (35976636).

Almost surely, 2^275820738 is an apocalyptic number.

275820738 is an abundant number, since it is smaller than the sum of its proper divisors (299805438).

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

275820738 is a wasteful number, since it uses less digits than its factorization.

275820738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1998729.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 275820738 is about 16607.8516973147. The cubic root of 275820738 is about 650.9420171529.

The spelling of 275820738 in words is "two hundred seventy-five million, eight hundred twenty thousand, seven hundred thirty-eight".