7122840000 has 140 divisors (see below), whose sum is σ = 23550167784. Its totient is φ = 1899392000.

The previous prime is 7122839981. The next prime is 7122840007. The reversal of 7122840000 is 482217.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7122840007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 90322 + ... + 149678.

Almost surely, 2^7122840000 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 7122840000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11775083892).

7122840000 is an abundant number, since it is smaller than the sum of its proper divisors (16427327784).

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

7122840000 is an equidigital number, since it uses as much as digits as its factorization.

7122840000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59392 (or 59367 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 7122840000 is about 84396.9193750578. The cubic root of 7122840000 is about 1924.0560954019.

The spelling of 7122840000 in words is "seven billion, one hundred twenty-two million, eight hundred forty thousand".