4133400021 has 6 divisors (see below), whose sum is σ = 5970466710. Its totient is φ = 2755600008.

The previous prime is 4133400017. The next prime is 4133400031. The reversal of 4133400021 is 1200043314.

It can be written as a sum of positive squares in only one way, i.e., 2971340100 + 1162059921 = 54510^2 + 34089^2 .

It is not a de Polignac number, because 4133400021 - 2² = 4133400017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4133399967 and 4133400003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4133400031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 229633326 + ... + 229633343.

It is an arithmetic number, because the mean of its divisors is an integer number (995077785).

Almost surely, 2^4133400021 is an apocalyptic number.

It is an amenable number.

4133400021 is a deficient number, since it is larger than the sum of its proper divisors (1837066689).

4133400021 is a wasteful number, since it uses less digits than its factorization.

4133400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459266675 (or 459266672 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4133400021 is about 64291.5237103617. The cubic root of 4133400021 is about 1604.8550473221.

Adding to 4133400021 its reverse (1200043314), we get a palindrome (5333443335).

The spelling of 4133400021 in words is "four billion, one hundred thirty-three million, four hundred thousand, twenty-one".