4003522749 has 12 divisors (see below), whose sum is σ = 5785971516. Its totient is φ = 2667581952.

The previous prime is 4003522723. The next prime is 4003522769. The reversal of 4003522749 is 9472253004.

It can be written as a sum of positive squares in 2 ways, for example, as 1117899225 + 2885623524 = 33435^2 + 53718^2 .

It is a de Polignac number, because none of the positive numbers 2^k-4003522749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4003522769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 101604 + ... + 135389.

It is an arithmetic number, because the mean of its divisors is an integer number (482164293).

Almost surely, 2^4003522749 is an apocalyptic number.

It is an amenable number.

4003522749 is a deficient number, since it is larger than the sum of its proper divisors (1782448767).

4003522749 is a wasteful number, since it uses less digits than its factorization.

4003522749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238876 (or 238873 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 4003522749 is about 63273.3968504932. The cubic root of 4003522749 is about 1587.8669165237.

The spelling of 4003522749 in words is "four billion, three million, five hundred twenty-two thousand, seven hundred forty-nine".