4424140728 has 128 divisors (see below), whose sum is σ = 14784192000. Its totient is φ = 1197504000.

The previous prime is 4424140697. The next prime is 4424140739. The reversal of 4424140728 is 8270414244.

4424140728 is a `hidden beast` number, since 4 + 4 + 241 + 407 + 2 + 8 = 666.

It is a super-2 number, since 2×4424140728² = 39146042362296739968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4424140692 and 4424140701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48273 + ... + 105728.

It is an arithmetic number, because the mean of its divisors is an integer number (115501500).

Almost surely, 2^4424140728 is an apocalyptic number.

It is an amenable number.

4424140728 is an abundant number, since it is smaller than the sum of its proper divisors (10360051272).

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

4424140728 is a wasteful number, since it uses less digits than its factorization.

4424140728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154042 (or 154032 counting only the distinct ones).

The product of its (nonzero) digits is 57344, while the sum is 36.

The square root of 4424140728 is about 66514.2144808161. The cubic root of 4424140728 is about 1641.6338971233.

The spelling of 4424140728 in words is "four billion, four hundred twenty-four million, one hundred forty thousand, seven hundred twenty-eight".