275233428 has 36 divisors (see below), whose sum is σ = 699278580. Its totient is φ = 91278768.

The previous prime is 275233337. The next prime is 275233447. The reversal of 275233428 is 824332572.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 262828944 + 12404484 = 16212^2 + 3522^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 275233392 and 275233401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1397026 + ... + 1397222.

It is an arithmetic number, because the mean of its divisors is an integer number (19424405).

Almost surely, 2^275233428 is an apocalyptic number.

It is an amenable number.

275233428 is an abundant number, since it is smaller than the sum of its proper divisors (424045152).

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

275233428 is an frugal number, since it uses more digits than its factorization.

275233428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 202 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 275233428 is about 16590.1605778847. The cubic root of 275233428 is about 650.4796680322.

275233428 divided by its sum of digits (36) gives a cube (7645373 = 197³).

The spelling of 275233428 in words is "two hundred seventy-five million, two hundred thirty-three thousand, four hundred twenty-eight".