275286988 has 12 divisors (see below), whose sum is σ = 482362272. Its totient is φ = 137469200.

The previous prime is 275286983. The next prime is 275287003. The reversal of 275286988 is 889682572.

It is a happy number.

It is a super-2 number, since 2×275286988² = 151565851524224288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (275286983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39988 + ... + 46363.

It is an arithmetic number, because the mean of its divisors is an integer number (40196856).

Almost surely, 2^275286988 is an apocalyptic number.

It is an amenable number.

275286988 is a deficient number, since it is larger than the sum of its proper divisors (207075284).

275286988 is a wasteful number, since it uses less digits than its factorization.

275286988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87152 (or 87150 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 55.

The square root of 275286988 is about 16591.7747091744. The cubic root of 275286988 is about 650.5218594085.

The spelling of 275286988 in words is "two hundred seventy-five million, two hundred eighty-six thousand, nine hundred eighty-eight".