4280805 has 24 divisors (see below), whose sum is σ = 7469280. Its totient is φ = 2268000.

The previous prime is 4280767. The next prime is 4280827. The reversal of 4280805 is 5080824.

It is not a de Polignac number, because 4280805 - 2⁶ = 4280741 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11106 + ... + 11484.

It is an arithmetic number, because the mean of its divisors is an integer number (311220).

Almost surely, 2^4280805 is an apocalyptic number.

4280805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4280805 is a deficient number, since it is larger than the sum of its proper divisors (3188475).

4280805 is a wasteful number, since it uses less digits than its factorization.

4280805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 4280805 is about 2069.0106331288. The cubic root of 4280805 is about 162.3710061119.

The spelling of 4280805 in words is "four million, two hundred eighty thousand, eight hundred five".