4052749 has 4 divisors (see below), whose sum is σ = 4291164. Its totient is φ = 3814336.

The previous prime is 4052743. The next prime is 4052767. The reversal of 4052749 is 9472504.

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 1550025 + 2502724 = 1245^2 + 1582^2 .

It is a cyclic number.

It is not a de Polignac number, because 4052749 - 2⁵ = 4052717 is a prime.

It is a d-powerful number, because it can be written as 4⁵ + 0 + 5⁹ + 2²¹ + 7³ + 4⁵ + 9² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4052749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4052743) 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, 119182 + ... + 119215.

It is an arithmetic number, because the mean of its divisors is an integer number (1072791).

Almost surely, 2^4052749 is an apocalyptic number.

It is an amenable number.

4052749 is a deficient number, since it is larger than the sum of its proper divisors (238415).

4052749 is a wasteful number, since it uses less digits than its factorization.

4052749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238414.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 4052749 is about 2013.1440584320. The cubic root of 4052749 is about 159.4348420158.

The spelling of 4052749 in words is "four million, fifty-two thousand, seven hundred forty-nine".