2821524 has 24 divisors (see below), whose sum is σ = 6971328. Its totient is φ = 885120.

The previous prime is 2821517. The next prime is 2821537. The reversal of 2821524 is 4251282.

It is a junction number, because it is equal to n+sod(n) for n = 2821494 and 2821503.

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, 6712 + ... + 7119.

It is an arithmetic number, because the mean of its divisors is an integer number (290472).

2^2821524 is an apocalyptic number.

It is an amenable number.

2821524 is an abundant number, since it is smaller than the sum of its proper divisors (4149804).

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

2821524 is a wasteful number, since it uses less digits than its factorization.

2821524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13855 (or 13853 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 2821524 is about 1679.7392654814. The cubic root of 2821524 is about 141.3062104315.

Subtracting from 2821524 its sum of digits (24), we obtain a triangular number (2821500 = T₂₃₇₅).

The spelling of 2821524 in words is "two million, eight hundred twenty-one thousand, five hundred twenty-four".