6720245384 has 64 divisors (see below), whose sum is σ = 13718905200. Its totient is φ = 3073638400.

The previous prime is 6720245381. The next prime is 6720245393. The reversal of 6720245384 is 4835420276.

It can be written as a sum of positive squares in 8 ways, for example, as 4826080900 + 1894164484 = 69470^2 + 43522^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (6720245381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1564712 + ... + 1569000.

Almost surely, 2^6720245384 is an apocalyptic number.

It is an amenable number.

6720245384 is an abundant number, since it is smaller than the sum of its proper divisors (6998659816).

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

6720245384 is a wasteful number, since it uses less digits than its factorization.

6720245384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4634 (or 4630 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 41.

The square root of 6720245384 is about 81977.1028031608. The cubic root of 6720245384 is about 1887.1005610260.

The spelling of 6720245384 in words is "six billion, seven hundred twenty million, two hundred forty-five thousand, three hundred eighty-four".