2784328 has 32 divisors (see below), whose sum is σ = 5637600. Its totient is φ = 1284352.

The previous prime is 2784307. The next prime is 2784329. The reversal of 2784328 is 8234872.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 2784293 and 2784302.

It is not an unprimeable number, because it can be changed into a prime (2784329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7851 + ... + 8197.

It is an arithmetic number, because the mean of its divisors is an integer number (176175).

2^2784328 is an apocalyptic number.

It is an amenable number.

2784328 is an abundant number, since it is smaller than the sum of its proper divisors (2853272).

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

2784328 is a wasteful number, since it uses less digits than its factorization.

2784328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 425 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 2784328 is about 1668.6305762511. The cubic root of 2784328 is about 140.6825175742.

The spelling of 2784328 in words is "two million, seven hundred eighty-four thousand, three hundred twenty-eight".