7288381604 has 72 divisors (see below), whose sum is σ = 15120927360. Its totient is φ = 3011057280.

The previous prime is 7288381591. The next prime is 7288381609. The reversal of 7288381604 is 4061838827.

It is a super-2 number, since 2×7288381604² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7288381609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11812304 + ... + 11812920.

It is an arithmetic number, because the mean of its divisors is an integer number (210012880).

Almost surely, 2^7288381604 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 7288381604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7560463680).

7288381604 is an abundant number, since it is smaller than the sum of its proper divisors (7832545756).

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

7288381604 is a wasteful number, since it uses less digits than its factorization.

7288381604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The square root of 7288381604 is about 85372.0188586401. The cubic root of 7288381604 is about 1938.8477236403.

The spelling of 7288381604 in words is "seven billion, two hundred eighty-eight million, three hundred eighty-one thousand, six hundred four".