4480902721 has 8 divisors (see below), whose sum is σ = 4756324104. Its totient is φ = 4206796800.

The previous prime is 4480902659. The next prime is 4480902749. The reversal of 4480902721 is 1272090844.

It can be written as a sum of positive squares in 4 ways, for example, as 2718162496 + 1762740225 = 52136^2 + 41985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4480902721 - 2²³ = 4472514113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4480902521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321840 + ... + 335473.

It is an arithmetic number, because the mean of its divisors is an integer number (594540513).

Almost surely, 2^4480902721 is an apocalyptic number.

It is an amenable number.

4480902721 is a deficient number, since it is larger than the sum of its proper divisors (275421383).

4480902721 is a wasteful number, since it uses less digits than its factorization.

4480902721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657731.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 4480902721 is about 66939.5452703408. The cubic root of 4480902721 is about 1648.6248378082.

The spelling of 4480902721 in words is "four billion, four hundred eighty million, nine hundred two thousand, seven hundred twenty-one".