4274209 has 8 divisors (see below), whose sum is σ = 4452840. Its totient is φ = 4099200.

The previous prime is 4274201. The next prime is 4274213. The reversal of 4274209 is 9024724.

4274209 = 122² + 123² + ... + 244².

It can be written as a sum of positive squares in 4 ways, for example, as 529984 + 3744225 = 728^2 + 1935^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4274209 - 2³ = 4274201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4274201) 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 7 ways as a sum of consecutive naturals, for example, 1647 + ... + 3355.

It is an arithmetic number, because the mean of its divisors is an integer number (556605).

Almost surely, 2^4274209 is an apocalyptic number.

It is an amenable number.

4274209 is a deficient number, since it is larger than the sum of its proper divisors (178631).

4274209 is a wasteful number, since it uses less digits than its factorization.

4274209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 4274209 is about 2067.4160200598. The cubic root of 4274209 is about 162.2875677785.

The spelling of 4274209 in words is "four million, two hundred seventy-four thousand, two hundred nine".