4240129 has 4 divisors (see below), whose sum is σ = 4244400. Its totient is φ = 4235860.

The previous prime is 4240127. The next prime is 4240139. The reversal of 4240129 is 9210424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4240129 - 2¹ = 4240127 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4240127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222 + ... + 2920.

It is an arithmetic number, because the mean of its divisors is an integer number (1061100).

Almost surely, 2^4240129 is an apocalyptic number.

It is an amenable number.

4240129 is a deficient number, since it is larger than the sum of its proper divisors (4271).

4240129 is a wasteful number, since it uses less digits than its factorization.

4240129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4270.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 4240129 is about 2059.1573519282. The cubic root of 4240129 is about 161.8550881129.

The spelling of 4240129 in words is "four million, two hundred forty thousand, one hundred twenty-nine".