275666436 has 48 divisors (see below), whose sum is σ = 718137280. Its totient is φ = 91445760.

The previous prime is 275666423. The next prime is 275666437. The reversal of 275666436 is 634666572.

It is a junction number, because it is equal to n+sod(n) for n = 275666391 and 275666400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275666437) 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, 16740 + ... + 28836.

Almost surely, 2^275666436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275666436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359068640).

275666436 is an abundant number, since it is smaller than the sum of its proper divisors (442470844).

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

275666436 is a wasteful number, since it uses less digits than its factorization.

275666436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12321 (or 12313 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 45.

The square root of 275666436 is about 16603.2055941014. The cubic root of 275666436 is about 650.8206093239.

The spelling of 275666436 in words is "two hundred seventy-five million, six hundred sixty-six thousand, four hundred thirty-six".