4029261905 has 8 divisors (see below), whose sum is σ = 4877903592. Its totient is φ = 3194883328.

The previous prime is 4029261881. The next prime is 4029261911. The reversal of 4029261905 is 5091629204.

It can be written as a sum of positive squares in 4 ways, for example, as 42981136 + 3986280769 = 6556^2 + 63137^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4029261905 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3565154 + ... + 3566283.

It is an arithmetic number, because the mean of its divisors is an integer number (609737949).

Almost surely, 2^4029261905 is an apocalyptic number.

It is an amenable number.

4029261905 is a deficient number, since it is larger than the sum of its proper divisors (848641687).

4029261905 is a wasteful number, since it uses less digits than its factorization.

4029261905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7131555.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 4029261905 is about 63476.4673323902. The cubic root of 4029261905 is about 1591.2625159688.

The spelling of 4029261905 in words is "four billion, twenty-nine million, two hundred sixty-one thousand, nine hundred five".