2840523 has 16 divisors (see below), whose sum is σ = 4517376. Its totient is φ = 1552320.

The previous prime is 2840507. The next prime is 2840549. The reversal of 2840523 is 3250482.

It is not a de Polignac number, because 2840523 - 2⁴ = 2840507 is a prime.

2840523 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2840493 and 2840502.

It is not an unprimeable number, because it can be changed into a prime (2840023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2458 + ... + 3423.

It is an arithmetic number, because the mean of its divisors is an integer number (282336).

2^2840523 is an apocalyptic number.

2840523 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2840523 is a deficient number, since it is larger than the sum of its proper divisors (1676853).

2840523 is a wasteful number, since it uses less digits than its factorization.

2840523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5914.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2840523 is about 1685.3851191938. The cubic root of 2840523 is about 141.6226674587.

The spelling of 2840523 in words is "two million, eight hundred forty thousand, five hundred twenty-three".