2109548 has 36 divisors (see below), whose sum is σ = 4404960. Its totient is φ = 880992.

The previous prime is 2109533. The next prime is 2109553. The reversal of 2109548 is 8459012.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 2109548.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9098 + ... + 9326.

It is an arithmetic number, because the mean of its divisors is an integer number (122360).

2^2109548 is an apocalyptic number.

2109548 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2109548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2202480).

2109548 is an abundant number, since it is smaller than the sum of its proper divisors (2295412).

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

2109548 is a wasteful number, since it uses less digits than its factorization.

2109548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 2109548 is about 1452.4283114839. The cubic root of 2109548 is about 128.2517019889.

The spelling of 2109548 in words is "two million, one hundred nine thousand, five hundred forty-eight".