4009349 has 4 divisors (see below), whose sum is σ = 4107180. Its totient is φ = 3911520.

The previous prime is 4009339. The next prime is 4009373. The reversal of 4009349 is 9439004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 964324 + 3045025 = 982^2 + 1745^2 .

It is a cyclic number.

It is not a de Polignac number, because 4009349 - 2⁴ = 4009333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4009319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48854 + ... + 48935.

It is an arithmetic number, because the mean of its divisors is an integer number (1026795).

Almost surely, 2^4009349 is an apocalyptic number.

It is an amenable number.

4009349 is a deficient number, since it is larger than the sum of its proper divisors (97831).

4009349 is an equidigital number, since it uses as much as digits as its factorization.

4009349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97830.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 4009349 is about 2002.3358859093. The cubic root of 4009349 is about 158.8636807414.

The spelling of 4009349 in words is "four million, nine thousand, three hundred forty-nine".