4240529 has 4 divisors (see below), whose sum is σ = 4247220. Its totient is φ = 4233840.

The previous prime is 4240519. The next prime is 4240541. The reversal of 4240529 is 9250424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 300304 + 3940225 = 548^2 + 1985^2 .

It is a cyclic number.

It is not a de Polignac number, because 4240529 - 2⁴ = 4240513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4240498 and 4240507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4240519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2282 + ... + 3699.

It is an arithmetic number, because the mean of its divisors is an integer number (1061805).

Almost surely, 2^4240529 is an apocalyptic number.

It is an amenable number.

4240529 is a deficient number, since it is larger than the sum of its proper divisors (6691).

4240529 is an equidigital number, since it uses as much as digits as its factorization.

4240529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6690.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4240529 is about 2059.2544767464. The cubic root of 4240529 is about 161.8601775807.

The spelling of 4240529 in words is "four million, two hundred forty thousand, five hundred twenty-nine".