41309749 has 16 divisors (see below), whose sum is σ = 45715824. Its totient is φ = 37094400.

The previous prime is 41309699. The next prime is 41309753. The reversal of 41309749 is 94790314.

It can be written as a sum of positive squares in 8 ways, for example, as 25959025 + 15350724 = 5095^2 + 3918^2 .

It is a cyclic number.

It is not a de Polignac number, because 41309749 - 2⁹ = 41309237 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 (41309759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89379 + ... + 89839.

It is an arithmetic number, because the mean of its divisors is an integer number (2857239).

Almost surely, 2^41309749 is an apocalyptic number.

It is an amenable number.

41309749 is a deficient number, since it is larger than the sum of its proper divisors (4406075).

41309749 is a wasteful number, since it uses less digits than its factorization.

41309749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 41309749 is about 6427.2660595311. The cubic root of 41309749 is about 345.6879056160.

The spelling of 41309749 in words is "forty-one million, three hundred nine thousand, seven hundred forty-nine".