3029720385 has 8 divisors (see below), whose sum is σ = 4847552640. Its totient is φ = 1615850864.

The previous prime is 3029720381. The next prime is 3029720401. The reversal of 3029720385 is 5830279203.

3029720385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3029720385 - 2² = 3029720381 is a prime.

It is a super-2 number, since 2×3029720385² = 18358411222569096450, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3029720381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100990665 + ... + 100990694.

It is an arithmetic number, because the mean of its divisors is an integer number (605944080).

Almost surely, 2^3029720385 is an apocalyptic number.

It is an amenable number.

3029720385 is a deficient number, since it is larger than the sum of its proper divisors (1817832255).

3029720385 is a wasteful number, since it uses less digits than its factorization.

3029720385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201981367.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 3029720385 is about 55042.8958631357. The cubic root of 3029720385 is about 1446.9966189132.

Adding to 3029720385 its reverse (5830279203), we get a palindrome (8859999588).

The spelling of 3029720385 in words is "three billion, twenty-nine million, seven hundred twenty thousand, three hundred eighty-five".