2749865532 has 48 divisors (see below), whose sum is σ = 6798177792. Its totient is φ = 862145280.

The previous prime is 2749865501. The next prime is 2749865537. The reversal of 2749865532 is 2355689472.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749865537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 406893 + ... + 413595.

It is an arithmetic number, because the mean of its divisors is an integer number (141628704).

Almost surely, 2^2749865532 is an apocalyptic number.

It is an amenable number.

2749865532 is an abundant number, since it is smaller than the sum of its proper divisors (4048312260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2749865532 is a wasteful number, since it uses less digits than its factorization.

2749865532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8738 (or 8736 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The square root of 2749865532 is about 52439.1602907598. The cubic root of 2749865532 is about 1400.9968295237.

The spelling of 2749865532 in words is "two billion, seven hundred forty-nine million, eight hundred sixty-five thousand, five hundred thirty-two".