2821376 has 36 divisors (see below), whose sum is σ = 5739552. Its totient is φ = 1383936.

The previous prime is 2821369. The next prime is 2821393. The reversal of 2821376 is 6731282.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 26315 + ... + 26421.

It is an arithmetic number, because the mean of its divisors is an integer number (159432).

2^2821376 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 2821376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2869776).

2821376 is an abundant number, since it is smaller than the sum of its proper divisors (2918176).

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

2821376 is a wasteful number, since it uses less digits than its factorization.

2821376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 212 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 2821376 is about 1679.6952104474. The cubic root of 2821376 is about 141.3037397000.

It can be divided in two parts, 2821 and 376, that multiplied together give a triangular number (1060696 = T₁₄₅₆).

The spelling of 2821376 in words is "two million, eight hundred twenty-one thousand, three hundred seventy-six".