100309448 has 12 divisors (see below), whose sum is σ = 188133345. Its totient is φ = 50140560.

The previous prime is 100309441. The next prime is 100309457. The reversal of 100309448 is 844903001.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 99640324 + 669124 = 9982^2 + 818^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7082.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100309448.

It is not an unprimeable number, because it can be changed into a prime (100309441) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 26558 + ... + 30098.

Almost surely, 2^100309448 is an apocalyptic number.

It is an amenable number.

100309448 is a deficient number, since it is larger than the sum of its proper divisors (87823897).

100309448 is an frugal number, since it uses more digits than its factorization.

100309448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7088 (or 3543 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 100309448 is about 10015.4604487263. The cubic root of 100309448 is about 464.6371671473.

The spelling of 100309448 in words is "one hundred million, three hundred nine thousand, four hundred forty-eight".