18100628 has 24 divisors (see below), whose sum is σ = 38986752. Its totient is φ = 7160544.

The previous prime is 18100619. The next prime is 18100633. The reversal of 18100628 is 82600181.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 18100597 and 18100606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24500 + ... + 25227.

It is an arithmetic number, because the mean of its divisors is an integer number (1624448).

Almost surely, 2^18100628 is an apocalyptic number.

It is an amenable number.

18100628 is an abundant number, since it is smaller than the sum of its proper divisors (20886124).

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

18100628 is a wasteful number, since it uses less digits than its factorization.

18100628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49751 (or 49749 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 18100628 is about 4254.4832823740. The cubic root of 18100628 is about 262.5616024735.

The spelling of 18100628 in words is "eighteen million, one hundred thousand, six hundred twenty-eight".