3029906881 has 4 divisors (see below), whose sum is σ = 3031244500. Its totient is φ = 3028569264.

The previous prime is 3029906851. The next prime is 3029906911. The reversal of 3029906881 is 1886099203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1886099203 = 383 ⋅4924541.

It is an interprime number because it is at equal distance from previous prime (3029906851) and next prime (3029906911).

It can be written as a sum of positive squares in 2 ways, for example, as 1383170481 + 1646736400 = 37191^2 + 40580^2 .

It is a cyclic number.

It is not a de Polignac number, because 3029906881 - 2²⁵ = 2996352449 is a prime.

It is a super-2 number, since 2×3029906881² = 18360671415062296322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3029906851) 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, 665406 + ... + 669943.

It is an arithmetic number, because the mean of its divisors is an integer number (757811125).

Almost surely, 2^3029906881 is an apocalyptic number.

It is an amenable number.

3029906881 is a deficient number, since it is larger than the sum of its proper divisors (1337619).

3029906881 is a wasteful number, since it uses less digits than its factorization.

3029906881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337618.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 3029906881 is about 55044.5899339799. The cubic root of 3029906881 is about 1447.0263085117.

The spelling of 3029906881 in words is "three billion, twenty-nine million, nine hundred six thousand, eight hundred eighty-one".