7129940304 has 80 divisors (see below), whose sum is σ = 19413043200. Its totient is φ = 2248702848.

The previous prime is 7129940297. The next prime is 7129940317. The reversal of 7129940304 is 4030499217.

It is a super-2 number, since 2×7129940304² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 782527 + ... + 791585.

It is an arithmetic number, because the mean of its divisors is an integer number (242663040).

Almost surely, 2^7129940304 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 7129940304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9706521600).

7129940304 is an abundant number, since it is smaller than the sum of its proper divisors (12283102896).

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

7129940304 is a wasteful number, since it uses less digits than its factorization.

7129940304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9952 (or 9946 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 7129940304 is about 84438.9738450202. The cubic root of 7129940304 is about 1924.6952059400.

The spelling of 7129940304 in words is "seven billion, one hundred twenty-nine million, nine hundred forty thousand, three hundred four".