4240905 has 16 divisors (see below), whose sum is σ = 7185024. Its totient is φ = 2128640.

The previous prime is 4240853. The next prime is 4240909. The reversal of 4240905 is 5090424.

It is not a de Polignac number, because 4240905 - 2¹⁰ = 4239881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4240909) 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, 8061 + ... + 8570.

It is an arithmetic number, because the mean of its divisors is an integer number (449064).

Almost surely, 2^4240905 is an apocalyptic number.

It is an amenable number.

4240905 is a deficient number, since it is larger than the sum of its proper divisors (2944119).

4240905 is a wasteful number, since it uses less digits than its factorization.

4240905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16656.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 4240905 is about 2059.3457698988. The cubic root of 4240905 is about 161.8649613886.

The spelling of 4240905 in words is "four million, two hundred forty thousand, nine hundred five".