100549828 has 12 divisors (see below), whose sum is σ = 176042412. Its totient is φ = 50252000.

The previous prime is 100549817. The next prime is 100549829. The reversal of 100549828 is 828945001.

It can be written as a sum of positive squares in 2 ways, for example, as 13089924 + 87459904 = 3618^2 + 9352^2 .

It is a super-2 number, since 2×100549828² = 20220535821659168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100549829) 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, 7578 + ... + 16078.

It is an arithmetic number, because the mean of its divisors is an integer number (14670201).

Almost surely, 2^100549828 is an apocalyptic number.

It is an amenable number.

100549828 is a deficient number, since it is larger than the sum of its proper divisors (75492584).

100549828 is a wasteful number, since it uses less digits than its factorization.

100549828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11462 (or 11460 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 100549828 is about 10027.4537146775. The cubic root of 100549828 is about 465.0080208275.

The spelling of 100549828 in words is "one hundred million, five hundred forty-nine thousand, eight hundred twenty-eight".