4140349 has 4 divisors (see below), whose sum is σ = 4161564. Its totient is φ = 4119136.

The previous prime is 4140287. The next prime is 4140361. The reversal of 4140349 is 9430414.

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 1836025 + 2304324 = 1355^2 + 1518^2 .

It is a cyclic number.

It is not a de Polignac number, because 4140349 - 2¹⁵ = 4107581 is a prime.

It is a Duffinian number.

4140349 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4140379) 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, 10312 + ... + 10705.

It is an arithmetic number, because the mean of its divisors is an integer number (1040391).

Almost surely, 2^4140349 is an apocalyptic number.

It is an amenable number.

4140349 is a deficient number, since it is larger than the sum of its proper divisors (21215).

4140349 is a wasteful number, since it uses less digits than its factorization.

4140349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21214.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4140349 is about 2034.7847552014. The cubic root of 4140349 is about 160.5753892521.

It can be divided in two parts, 4140 and 349, that added together give a square (4489 = 67²).

The spelling of 4140349 in words is "four million, one hundred forty thousand, three hundred forty-nine".