4040045213 has 4 divisors (see below), whose sum is σ = 4040433180. Its totient is φ = 4039657248.

The previous prime is 4040045203. The next prime is 4040045231. The reversal of 4040045213 is 3125400404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2987496964 + 1052548249 = 54658^2 + 32443^2 .

It is a cyclic number.

It is not a de Polignac number, because 4040045213 - 2¹⁴ = 4040028829 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 (4040045203) 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 3 ways as a sum of consecutive naturals, for example, 177920 + ... + 199337.

It is an arithmetic number, because the mean of its divisors is an integer number (1010108295).

Almost surely, 2^4040045213 is an apocalyptic number.

It is an amenable number.

4040045213 is a deficient number, since it is larger than the sum of its proper divisors (387967).

4040045213 is a wasteful number, since it uses less digits than its factorization.

4040045213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387966.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 4040045213 is about 63561.3499935299. The cubic root of 4040045213 is about 1592.6807897225.

Adding to 4040045213 its reverse (3125400404), we get a palindrome (7165445617).

The spelling of 4040045213 in words is "four billion, forty million, forty-five thousand, two hundred thirteen".