275630628 has 48 divisors (see below), whose sum is σ = 791557760. Its totient is φ = 72693504.

The previous prime is 275630627. The next prime is 275630629. The reversal of 275630628 is 826036572.

It is an interprime number because it is at equal distance from previous prime (275630627) and next prime (275630629).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (275630627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125113 + ... + 127296.

Almost surely, 2^275630628 is an apocalyptic number.

275630628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

275630628 is an abundant number, since it is smaller than the sum of its proper divisors (515927132).

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

275630628 is a wasteful number, since it uses less digits than its factorization.

275630628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252436 (or 252434 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 275630628 is about 16602.1272131013. The cubic root of 275630628 is about 650.7924284134.

The spelling of 275630628 in words is "two hundred seventy-five million, six hundred thirty thousand, six hundred twenty-eight".