7389863280 has 480 divisors, whose sum is σ = 27785721600. Its totient is φ = 1818464256.

The previous prime is 7389863237. The next prime is 7389863293. The reversal of 7389863280 is 823689837.

It is a super-2 number, since 2×7389863280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 19498131 + ... + 19498509.

It is an arithmetic number, because the mean of its divisors is an integer number (57886920).

Almost surely, 2^7389863280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7389863280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13892860800).

7389863280 is an abundant number, since it is smaller than the sum of its proper divisors (20395858320).

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

7389863280 is a wasteful number, since it uses less digits than its factorization.

7389863280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 7389863280 is about 85964.3139913301. The cubic root of 7389863280 is about 1947.8049620122.

The spelling of 7389863280 in words is "seven billion, three hundred eighty-nine million, eight hundred sixty-three thousand, two hundred eighty".