4030641805 has 16 divisors (see below), whose sum is σ = 4971555504. Its totient is φ = 3134799360.

The previous prime is 4030641803. The next prime is 4030641829. The reversal of 4030641805 is 5081460304.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 41203561 + 3989438244 = 6419^2 + 63162^2 .

It is not a de Polignac number, because 4030641805 - 2¹ = 4030641803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4030641803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236139 + ... + 252631.

It is an arithmetic number, because the mean of its divisors is an integer number (310722219).

Almost surely, 2^4030641805 is an apocalyptic number.

It is an amenable number.

4030641805 is a deficient number, since it is larger than the sum of its proper divisors (940913699).

4030641805 is a wasteful number, since it uses less digits than its factorization.

4030641805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17856.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 4030641805 is about 63487.3357843909. The cubic root of 4030641805 is about 1591.4441482861. Note that the first 3 decimals are identical.

The spelling of 4030641805 in words is "four billion, thirty million, six hundred forty-one thousand, eight hundred five".