2009524 has 24 divisors (see below), whose sum is σ = 3880800. Its totient is φ = 902880.

The previous prime is 2009509. The next prime is 2009537. The reversal of 2009524 is 4259002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2009495 and 2009504.

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, 4587 + ... + 5005.

It is an arithmetic number, because the mean of its divisors is an integer number (161700).

2^2009524 is an apocalyptic number.

It is an amenable number.

2009524 is a deficient number, since it is larger than the sum of its proper divisors (1871276).

2009524 is a wasteful number, since it uses less digits than its factorization.

2009524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2009524 is about 1417.5768056793. The cubic root of 2009524 is about 126.1917798415.

The spelling of 2009524 in words is "two million, nine thousand, five hundred twenty-four".