7264481280 has 624 divisors, whose sum is σ = 28685537280. Its totient is φ = 1560674304.

The previous prime is 7264481267. The next prime is 7264481281. The reversal of 7264481280 is 821844627.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (7264481281) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 57200577 + ... + 57200703.

Almost surely, 2^7264481280 is an apocalyptic number.

7264481280 is a gapful number since it is divisible by the number (70) 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 7264481280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14342768640).

7264481280 is an abundant number, since it is smaller than the sum of its proper divisors (21421056000).

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

7264481280 is a wasteful number, since it uses less digits than its factorization.

7264481280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The square root of 7264481280 is about 85231.9264125832. The cubic root of 7264481280 is about 1936.7260896913.

The spelling of 7264481280 in words is "seven billion, two hundred sixty-four million, four hundred eighty-one thousand, two hundred eighty".