100644396 has 12 divisors (see below), whose sum is σ = 234836952. Its totient is φ = 33548128.

The previous prime is 100644391. The next prime is 100644407. The reversal of 100644396 is 693446001.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×100644396³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (100644391) 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, 4193505 + ... + 4193528.

It is an arithmetic number, because the mean of its divisors is an integer number (19569746).

Almost surely, 2^100644396 is an apocalyptic number.

It is an amenable number.

100644396 is an abundant number, since it is smaller than the sum of its proper divisors (134192556).

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

100644396 is a wasteful number, since it uses less digits than its factorization.

100644396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8387040 (or 8387038 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 100644396 is about 10032.1680607932. The cubic root of 100644396 is about 465.1537565300.

The spelling of 100644396 in words is "one hundred million, six hundred forty-four thousand, three hundred ninety-six".