2840384 has 14 divisors (see below), whose sum is σ = 5636514. Its totient is φ = 1420160.

The previous prime is 2840359. The next prime is 2840393. The reversal of 2840384 is 4830482.

It can be written as a sum of positive squares in only one way, i.e., 2310400 + 529984 = 1520^2 + 728^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22127 + ... + 22254.

2^2840384 is an apocalyptic number.

It is an amenable number.

2840384 is a deficient number, since it is larger than the sum of its proper divisors (2796130).

2840384 is an equidigital number, since it uses as much as digits as its factorization.

2840384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44393 (or 44383 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 2840384 is about 1685.3438818235. The cubic root of 2840384 is about 141.6203573357.

The spelling of 2840384 in words is "two million, eight hundred forty thousand, three hundred eighty-four".