7920740322 has 96 divisors (see below), whose sum is σ = 19856693376. Its totient is φ = 2258150400.

The previous prime is 7920740291. The next prime is 7920740323. The reversal of 7920740322 is 2230470297.

It is not an unprimeable number, because it can be changed into a prime (7920740323) 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, 263538 + ... + 292050.

It is an arithmetic number, because the mean of its divisors is an integer number (206840556).

Almost surely, 2^7920740322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7920740322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9928346688).

7920740322 is an abundant number, since it is smaller than the sum of its proper divisors (11935953054).

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

7920740322 is a wasteful number, since it uses less digits than its factorization.

7920740322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28616 (or 28613 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 7920740322 is about 88998.5411228746. The cubic root of 7920740322 is about 1993.3730931383.

The spelling of 7920740322 in words is "seven billion, nine hundred twenty million, seven hundred forty thousand, three hundred twenty-two".