4226021540 has 48 divisors (see below), whose sum is σ = 9572828160. Its totient is φ = 1557843840.

The previous prime is 4226021537. The next prime is 4226021593. The reversal of 4226021540 is 451206224.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151181 + ... + 176939.

It is an arithmetic number, because the mean of its divisors is an integer number (199433920).

Almost surely, 2^4226021540 is an apocalyptic number.

It is an amenable number.

4226021540 is an abundant number, since it is smaller than the sum of its proper divisors (5346806620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4226021540 is a wasteful number, since it uses less digits than its factorization.

4226021540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26412 (or 26410 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 4226021540 is about 65007.8575250715. The cubic root of 4226021540 is about 1616.7538436475.

Adding to 4226021540 its reverse (451206224), we get a palindrome (4677227764).

The spelling of 4226021540 in words is "four billion, two hundred twenty-six million, twenty-one thousand, five hundred forty".