103249428 has 12 divisors (see below), whose sum is σ = 240915360. Its totient is φ = 34416472.

The previous prime is 103249423. The next prime is 103249441. The reversal of 103249428 is 824942301.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103249423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4302048 + ... + 4302071.

It is an arithmetic number, because the mean of its divisors is an integer number (20076280).

Almost surely, 2^103249428 is an apocalyptic number.

It is an amenable number.

103249428 is an abundant number, since it is smaller than the sum of its proper divisors (137665932).

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

103249428 is a wasteful number, since it uses less digits than its factorization.

103249428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8604126 (or 8604124 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 103249428 is about 10161.1725701319. The cubic root of 103249428 is about 469.1328934812.

The spelling of 103249428 in words is "one hundred three million, two hundred forty-nine thousand, four hundred twenty-eight".