4367280640 has 80 divisors (see below), whose sum is σ = 10726891560. Its totient is φ = 1704263680.

The previous prime is 4367280611. The next prime is 4367280653. The reversal of 4367280640 is 460827634.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3536918784 + 830361856 = 59472^2 + 28816^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 4367280593 and 4367280602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84156 + ... + 125764.

Almost surely, 2^4367280640 is an apocalyptic number.

4367280640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4367280640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5363445780).

4367280640 is an abundant number, since it is smaller than the sum of its proper divisors (6359610920).

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

4367280640 is an equidigital number, since it uses as much as digits as its factorization.

4367280640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41673 (or 41657 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 4367280640 is about 66085.4041373736. The cubic root of 4367280640 is about 1634.5706635171.

The spelling of 4367280640 in words is "four billion, three hundred sixty-seven million, two hundred eighty thousand, six hundred forty".