4281309 has 8 divisors (see below), whose sum is σ = 6342720. Its totient is φ = 2854188.

The previous prime is 4281301. The next prime is 4281311. The reversal of 4281309 is 9031824.

It is not a de Polignac number, because 4281309 - 2³ = 4281301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 158567 = 4281309 / (4 + 2 + 8 + 1 + 3 + 0 + 9).

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁸ + 2¹⁹ + 8⁷ + 1 + 3¹³ + 0 + 9 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4281301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79257 + ... + 79310.

It is an arithmetic number, because the mean of its divisors is an integer number (792840).

Almost surely, 2^4281309 is an apocalyptic number.

It is an amenable number.

4281309 is a deficient number, since it is larger than the sum of its proper divisors (2061411).

4281309 is a wasteful number, since it uses less digits than its factorization.

4281309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158576 (or 158570 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 4281309 is about 2069.1324268881. The cubic root of 4281309 is about 162.3773781047.

The spelling of 4281309 in words is "four million, two hundred eighty-one thousand, three hundred nine".