4720228639 has 16 divisors (see below), whose sum is σ = 5543027776. Its totient is φ = 3934656000.

The previous prime is 4720228621. The next prime is 4720228661. The reversal of 4720228639 is 9368220274.

It is a cyclic number.

It is not a de Polignac number, because 4720228639 - 2⁷ = 4720228511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4720228595 and 4720228604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4720228679) 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, 852199 + ... + 857719.

It is an arithmetic number, because the mean of its divisors is an integer number (346439236).

Almost surely, 2^4720228639 is an apocalyptic number.

4720228639 is a deficient number, since it is larger than the sum of its proper divisors (822799137).

4720228639 is a wasteful number, since it uses less digits than its factorization.

4720228639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8866.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 4720228639 is about 68703.9201137752. The cubic root of 4720228639 is about 1677.4683902143.

The spelling of 4720228639 in words is "four billion, seven hundred twenty million, two hundred twenty-eight thousand, six hundred thirty-nine".