4473999072 has 144 divisors (see below), whose sum is σ = 13523131440. Its totient is φ = 1398214656.

The previous prime is 4473999071. The next prime is 4473999073. The reversal of 4473999072 is 2709993744.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4473999071) and next prime (4473999073).

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

It is a super-2 number, since 2×4473999072² = 40033335392513722368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4473999071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1383954 + ... + 1387182.

It is an arithmetic number, because the mean of its divisors is an integer number (93910635).

Almost surely, 2^4473999072 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 4473999072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6761565720).

4473999072 is an abundant number, since it is smaller than the sum of its proper divisors (9049132368).

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

4473999072 is a wasteful number, since it uses less digits than its factorization.

4473999072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3545 (or 3534 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The square root of 4473999072 is about 66887.9590957894. The cubic root of 4473999072 is about 1647.7777334011. Note that the first 4 decimals are identical.

The spelling of 4473999072 in words is "four billion, four hundred seventy-three million, nine hundred ninety-nine thousand, seventy-two".