7720340244 has 24 divisors (see below), whose sum is σ = 18216535680. Its totient is φ = 2544531264.

The previous prime is 7720340209. The next prime is 7720340249. The reversal of 7720340244 is 4420430277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7720340249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3613324 + ... + 3615459.

It is an arithmetic number, because the mean of its divisors is an integer number (759022320).

Almost surely, 2^7720340244 is an apocalyptic number.

It is an amenable number.

7720340244 is an abundant number, since it is smaller than the sum of its proper divisors (10496195436).

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

7720340244 is a wasteful number, since it uses less digits than its factorization.

7720340244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7228879 (or 7228877 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 33.

The square root of 7720340244 is about 87865.4667318168. The cubic root of 7720340244 is about 1976.4180592096.

The spelling of 7720340244 in words is "seven billion, seven hundred twenty million, three hundred forty thousand, two hundred forty-four".