7020545140 has 96 divisors (see below), whose sum is σ = 17130516480. Its totient is φ = 2367121536.

The previous prime is 7020545137. The next prime is 7020545149. The reversal of 7020545140 is 415450207.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 7020545099 and 7020545108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7020545149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3128859 + ... + 3131101.

It is an arithmetic number, because the mean of its divisors is an integer number (178442880).

Almost surely, 2^7020545140 is an apocalyptic number.

7020545140 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 7020545140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8565258240).

7020545140 is an abundant number, since it is smaller than the sum of its proper divisors (10109971340).

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

7020545140 is a wasteful number, since it uses less digits than its factorization.

7020545140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621 (or 2619 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 7020545140 is about 83788.6933899795. The cubic root of 7020545140 is about 1914.8008518850.

Adding to 7020545140 its reverse (415450207), we get a palindrome (7435995347).

The spelling of 7020545140 in words is "seven billion, twenty million, five hundred forty-five thousand, one hundred forty".