4272021284 has 6 divisors (see below), whose sum is σ = 7476037254. Its totient is φ = 2136010640.

The previous prime is 4272021283. The next prime is 4272021287. The reversal of 4272021284 is 4821202724.

It can be written as a sum of positive squares in only one way, i.e., 4086789184 + 185232100 = 63928^2 + 13610^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4272021284.

It is not an unprimeable number, because it can be changed into a prime (4272021283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534002657 + ... + 534002664.

It is an arithmetic number, because the mean of its divisors is an integer number (1246006209).

Almost surely, 2^4272021284 is an apocalyptic number.

It is an amenable number.

4272021284 is a deficient number, since it is larger than the sum of its proper divisors (3204015970).

4272021284 is a wasteful number, since it uses less digits than its factorization.

4272021284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068005325 (or 1068005323 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 32.

The square root of 4272021284 is about 65360.7013732258. The cubic root of 4272021284 is about 1622.5987456867.

The spelling of 4272021284 in words is "four billion, two hundred seventy-two million, twenty-one thousand, two hundred eighty-four".