530440749 has 12 divisors (see below), whose sum is σ = 811262556. Its totient is φ = 332825472.

The previous prime is 530440747. The next prime is 530440763. The reversal of 530440749 is 947044035.

It can be written as a sum of positive squares in 2 ways, for example, as 313821225 + 216619524 = 17715^2 + 14718^2 .

It is not a de Polignac number, because 530440749 - 2¹ = 530440747 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530440741) 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, 1733314 + ... + 1733619.

It is an arithmetic number, because the mean of its divisors is an integer number (67605213).

Almost surely, 2^530440749 is an apocalyptic number.

It is an amenable number.

530440749 is a deficient number, since it is larger than the sum of its proper divisors (280821807).

530440749 is a wasteful number, since it uses less digits than its factorization.

530440749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466956 (or 3466953 counting only the distinct ones).

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

The square root of 530440749 is about 23031.2993337328. The cubic root of 530440749 is about 809.4915006872.

The spelling of 530440749 in words is "five hundred thirty million, four hundred forty thousand, seven hundred forty-nine".