4072209 has 8 divisors (see below), whose sum is σ = 5616960. Its totient is φ = 2621136.

The previous prime is 4072207. The next prime is 4072223. The reversal of 4072209 is 9022704.

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

It is not a de Polignac number, because 4072209 - 2¹ = 4072207 is a prime.

It is a super-2 number, since 2×4072209² = 33165772279362, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4072207) 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, 23317 + ... + 23490.

It is an arithmetic number, because the mean of its divisors is an integer number (702120).

Almost surely, 2^4072209 is an apocalyptic number.

It is an amenable number.

4072209 is a deficient number, since it is larger than the sum of its proper divisors (1544751).

4072209 is a wasteful number, since it uses less digits than its factorization.

4072209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46839.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 4072209 is about 2017.9715062409. The cubic root of 4072209 is about 159.6896196437.

The spelling of 4072209 in words is "four million, seventy-two thousand, two hundred nine".