7620140720 has 40 divisors (see below), whose sum is σ = 18051116976. Its totient is φ = 2990544128.

The previous prime is 7620140651. The next prime is 7620140767. The reversal of 7620140720 is 270410267.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894362 + ... + 902841.

Almost surely, 2^7620140720 is an apocalyptic number.

It is an amenable number.

7620140720 is an abundant number, since it is smaller than the sum of its proper divisors (10430976256).

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

7620140720 is a wasteful number, since it uses less digits than its factorization.

7620140720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1797269 (or 1797263 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 7620140720 is about 87293.4173921493. The cubic root of 7620140720 is about 1967.8303924932.

Adding to 7620140720 its reverse (270410267), we get a palindrome (7890550987).

The spelling of 7620140720 in words is "seven billion, six hundred twenty million, one hundred forty thousand, seven hundred twenty".