4228626021 has 16 divisors (see below), whose sum is σ = 5831239680. Its totient is φ = 2722898160.

The previous prime is 4228626001. The next prime is 4228626029. The reversal of 4228626021 is 1206268224.

It is not a de Polignac number, because 4228626021 - 2⁷ = 4228625893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228626029) 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, 5170 + ... + 92108.

It is an arithmetic number, because the mean of its divisors is an integer number (364452480).

Almost surely, 2^4228626021 is an apocalyptic number.

It is an amenable number.

4228626021 is a deficient number, since it is larger than the sum of its proper divisors (1602613659).

4228626021 is a wasteful number, since it uses less digits than its factorization.

4228626021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87496.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 4228626021 is about 65027.8864872602. The cubic root of 4228626021 is about 1617.0859085214.

The spelling of 4228626021 in words is "four billion, two hundred twenty-eight million, six hundred twenty-six thousand, twenty-one".