4010004021 has 4 divisors (see below), whose sum is σ = 5346672032. Its totient is φ = 2673336012.

The previous prime is 4010004007. The next prime is 4010004043. The reversal of 4010004021 is 1204000104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4010004021 - 2⁵ = 4010003989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4010003988 and 4010004006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4010004091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 668334001 + ... + 668334006.

It is an arithmetic number, because the mean of its divisors is an integer number (1336668008).

Almost surely, 2^4010004021 is an apocalyptic number.

It is an amenable number.

4010004021 is a deficient number, since it is larger than the sum of its proper divisors (1336668011).

4010004021 is a wasteful number, since it uses less digits than its factorization.

4010004021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336668010.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 4010004021 is about 63324.5925450768. The cubic root of 4010004021 is about 1588.7233163716.

Adding to 4010004021 its reverse (1204000104), we get a palindrome (5214004125).

The spelling of 4010004021 in words is "four billion, ten million, four thousand, twenty-one".