2809048 has 32 divisors (see below), whose sum is σ = 5812560. Its totient is φ = 1262080.

The previous prime is 2809019. The next prime is 2809069. The reversal of 2809048 is 8409082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11940 + ... + 12172.

2^2809048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2809048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2906280).

2809048 is an abundant number, since it is smaller than the sum of its proper divisors (3003512).

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

2809048 is a wasteful number, since it uses less digits than its factorization.

2809048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2809048 is about 1676.0214795760. The cubic root of 2809048 is about 141.0976303534.

The spelling of 2809048 in words is "two million, eight hundred nine thousand, forty-eight".