2842509 has 8 divisors (see below), whose sum is σ = 3798432. Its totient is φ = 1890800.

The previous prime is 2842487. The next prime is 2842517. The reversal of 2842509 is 9052482.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2842509 - 2⁸ = 2842253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842529) 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, 1234 + ... + 2684.

It is an arithmetic number, because the mean of its divisors is an integer number (474804).

2^2842509 is an apocalyptic number.

It is an amenable number.

2842509 is a deficient number, since it is larger than the sum of its proper divisors (955923).

2842509 is a wasteful number, since it uses less digits than its factorization.

2842509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2107.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 2842509 is about 1685.9741990908. The cubic root of 2842509 is about 141.6556657355.

Multiplying 2842509 by its sum of digits (30), we get a triangular number (85275270 = T₁₃₀₅₉).

The spelling of 2842509 in words is "two million, eight hundred forty-two thousand, five hundred nine".