3072749069 has 16 divisors (see below), whose sum is σ = 3358815600. Its totient is φ = 2793885696.

The previous prime is 3072749021. The next prime is 3072749107. The reversal of 3072749069 is 9609472703.

It can be written as a sum of positive squares in 8 ways, for example, as 157828969 + 2914920100 = 12563^2 + 53990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3072749069 is a prime.

It is a super-2 number, since 2×3072749069² = 18883573682080733522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072742069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955937 + ... + 959145.

It is an arithmetic number, because the mean of its divisors is an integer number (209925975).

Almost surely, 2^3072749069 is an apocalyptic number.

It is an amenable number.

3072749069 is a deficient number, since it is larger than the sum of its proper divisors (286066531).

3072749069 is a wasteful number, since it uses less digits than its factorization.

3072749069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304.

The product of its (nonzero) digits is 571536, while the sum is 47.

The square root of 3072749069 is about 55432.3828551507. The cubic root of 3072749069 is about 1453.8146199330.

The spelling of 3072749069 in words is "three billion, seventy-two million, seven hundred forty-nine thousand, sixty-nine".