7044139008 has 144 divisors (see below), whose sum is σ = 20413493100. Its totient is φ = 2340126720.

The previous prime is 7044138973. The next prime is 7044139009. The reversal of 7044139008 is 8009314407.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7023780864 + 20358144 = 83808^2 + 4512^2 .

It is a tau number, because it is divible by the number of its divisors (144).

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

It is not an unprimeable number, because it can be changed into a prime (7044139009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8496738 + ... + 8497566.

Almost surely, 2^7044139008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7044139008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10206746550).

7044139008 is an abundant number, since it is smaller than the sum of its proper divisors (13369354092).

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

7044139008 is a wasteful number, since it uses less digits than its factorization.

7044139008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 7044139008 is about 83929.3691624094. The cubic root of 7044139008 is about 1916.9434700950.

The spelling of 7044139008 in words is "seven billion, forty-four million, one hundred thirty-nine thousand, eight".