100644030 has 24 divisors (see below), whose sum is σ = 261674712. Its totient is φ = 26838384.

The previous prime is 100644023. The next prime is 100644041. The reversal of 100644030 is 30446001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 100643994 and 100644012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 559044 + ... + 559223.

It is an arithmetic number, because the mean of its divisors is an integer number (10903113).

Almost surely, 2^100644030 is an apocalyptic number.

100644030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100644030 is an abundant number, since it is smaller than the sum of its proper divisors (161030682).

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

100644030 is a wasteful number, since it uses less digits than its factorization.

100644030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118280 (or 1118277 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 100644030 is about 10032.1498194554. The cubic root of 100644030 is about 465.1531926751.

The spelling of 100644030 in words is "one hundred million, six hundred forty-four thousand, thirty".