4242805 has 16 divisors (see below), whose sum is σ = 5854464. Its totient is φ = 2891520.

The previous prime is 4242781. The next prime is 4242829. The reversal of 4242805 is 5082424.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4242781) and next prime (4242829).

It is not a de Polignac number, because 4242805 - 2⁷ = 4242677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4242805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8184 + ... + 8686.

It is an arithmetic number, because the mean of its divisors is an integer number (365904).

Almost surely, 2^4242805 is an apocalyptic number.

It is an amenable number.

4242805 is a deficient number, since it is larger than the sum of its proper divisors (1611659).

4242805 is a wasteful number, since it uses less digits than its factorization.

4242805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 4242805 is about 2059.8070297967. The cubic root of 4242805 is about 161.8891305624.

The spelling of 4242805 in words is "four million, two hundred forty-two thousand, eight hundred five".