4129749 has 24 divisors (see below), whose sum is σ = 6569472. Its totient is φ = 2484000.

The previous prime is 4129729. The next prime is 4129751. The reversal of 4129749 is 9479214.

It is not a de Polignac number, because 4129749 - 2⁸ = 4129493 is a prime.

It is a Curzon number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4129729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5124 + ... + 5874.

It is an arithmetic number, because the mean of its divisors is an integer number (273728).

Almost surely, 2^4129749 is an apocalyptic number.

It is an amenable number.

4129749 is a deficient number, since it is larger than the sum of its proper divisors (2439723).

4129749 is a wasteful number, since it uses less digits than its factorization.

4129749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817 (or 814 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 4129749 is about 2032.1783878390. The cubic root of 4129749 is about 160.4382386762.

The spelling of 4129749 in words is "four million, one hundred twenty-nine thousand, seven hundred forty-nine".