7020548640 has 480 divisors, whose sum is σ = 29813857920. Its totient is φ = 1519865856.

The previous prime is 7020548617. The next prime is 7020548651. The reversal of 7020548640 is 468450207.

7020548640 is a `hidden beast` number, since 7 + 0 + 2 + 0 + 5 + 4 + 8 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 7020548595 and 7020548604.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1721644 + ... + 1725716.

It is an arithmetic number, because the mean of its divisors is an integer number (62112204).

Almost surely, 2^7020548640 is an apocalyptic number.

7020548640 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7020548640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14906928960).

7020548640 is an abundant number, since it is smaller than the sum of its proper divisors (22793309280).

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

7020548640 is a wasteful number, since it uses less digits than its factorization.

7020548640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4126 (or 4109 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 7020548640 is about 83788.7142758498. The cubic root of 7020548640 is about 1914.8011700845.

Adding to 7020548640 its reverse (468450207), we get a palindrome (7488998847).

The spelling of 7020548640 in words is "seven billion, twenty million, five hundred forty-eight thousand, six hundred forty".