7280008704 has 320 divisors, whose sum is σ = 22714855680. Its totient is φ = 2299207680.

The previous prime is 7280008693. The next prime is 7280008727. The reversal of 7280008704 is 4078000827.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21993819 + ... + 21994149.

It is an arithmetic number, because the mean of its divisors is an integer number (70983924).

Almost surely, 2^7280008704 is an apocalyptic number.

7280008704 is a gapful number since it is divisible by the number (74) 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 7280008704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11357427840).

7280008704 is an abundant number, since it is smaller than the sum of its proper divisors (15434846976).

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

7280008704 is a wasteful number, since it uses less digits than its factorization.

7280008704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 416 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 7280008704 is about 85322.9670370176. The cubic root of 7280008704 is about 1938.1049890884.

The spelling of 7280008704 in words is "seven billion, two hundred eighty million, eight thousand, seven hundred four".