275078328 has 32 divisors (see below), whose sum is σ = 785938560. Its totient is φ = 78593760.

The previous prime is 275078303. The next prime is 275078329. The reversal of 275078328 is 823870572.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 275078328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (275078329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 818518 + ... + 818853.

It is an arithmetic number, because the mean of its divisors is an integer number (24560580).

Almost surely, 2^275078328 is an apocalyptic number.

275078328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

275078328 is an abundant number, since it is smaller than the sum of its proper divisors (510860232).

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

275078328 is a wasteful number, since it uses less digits than its factorization.

275078328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637387 (or 1637383 counting only the distinct ones).

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

The square root of 275078328 is about 16585.4854616921. The cubic root of 275078328 is about 650.3574586113.

The spelling of 275078328 in words is "two hundred seventy-five million, seventy-eight thousand, three hundred twenty-eight".