4280644481 has 8 divisors (see below), whose sum is σ = 4410420840. Its totient is φ = 4152683392.

The previous prime is 4280644477. The next prime is 4280644507. The reversal of 4280644481 is 1844460824.

It can be written as a sum of positive squares in 4 ways, for example, as 29604481 + 4251040000 = 5441^2 + 65200^2 .

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 4280644481 - 2² = 4280644477 is a prime.

It is a super-2 number, since 2×4280644481² = 36647834345431518722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4280644411) 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, 449030 + ... + 458463.

It is an arithmetic number, because the mean of its divisors is an integer number (551302605).

Almost surely, 2^4280644481 is an apocalyptic number.

It is an amenable number.

4280644481 is a deficient number, since it is larger than the sum of its proper divisors (129776359).

4280644481 is an equidigital number, since it uses as much as digits as its factorization.

4280644481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907635.

The product of its (nonzero) digits is 196608, while the sum is 41.

The square root of 4280644481 is about 65426.6343395410. The cubic root of 4280644481 is about 1623.6897659041.

The spelling of 4280644481 in words is "four billion, two hundred eighty million, six hundred forty-four thousand, four hundred eighty-one".