100628280 has 48 divisors (see below), whose sum is σ = 327043080. Its totient is φ = 26834112.

The previous prime is 100628261. The next prime is 100628293. The reversal of 100628280 is 82826001.

100628280 is a `hidden beast` number, since 10 + 0 + 628 + 28 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139402 + ... + 140121.

Almost surely, 2^100628280 is an apocalyptic number.

100628280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100628280 is an abundant number, since it is smaller than the sum of its proper divisors (226414800).

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

100628280 is a wasteful number, since it uses less digits than its factorization.

100628280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279540 (or 279533 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 100628280 is about 10031.3648124271. The cubic root of 100628280 is about 465.1289271359.

The spelling of 100628280 in words is "one hundred million, six hundred twenty-eight thousand, two hundred eighty".