275228444 has 12 divisors (see below), whose sum is σ = 498258600. Its totient is φ = 132868848.

The previous prime is 275228389. The next prime is 275228461. The reversal of 275228444 is 444822572.

It is a super-2 number, since 2×275228444² = 151501392773322272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 275228398 and 275228407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1186214 + ... + 1186445.

It is an arithmetic number, because the mean of its divisors is an integer number (41521550).

Almost surely, 2^275228444 is an apocalyptic number.

It is an amenable number.

275228444 is a deficient number, since it is larger than the sum of its proper divisors (223030156).

275228444 is a wasteful number, since it uses less digits than its factorization.

275228444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2372692 (or 2372690 counting only the distinct ones).

The product of its digits is 143360, while the sum is 38.

The square root of 275228444 is about 16590.0103676881. The cubic root of 275228444 is about 650.4757416557.

The spelling of 275228444 in words is "two hundred seventy-five million, two hundred twenty-eight thousand, four hundred forty-four".