7620730740 has 72 divisors (see below), whose sum is σ = 26418537600. Its totient is φ = 1741881024.

The previous prime is 7620730723. The next prime is 7620730757. The reversal of 7620730740 is 470370267.

It is an interprime number because it is at equal distance from previous prime (7620730723) and next prime (7620730757).

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 = 7620730695 and 7620730704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3022840 + ... + 3025359.

Almost surely, 2^7620730740 is an apocalyptic number.

7620730740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7620730740 is an abundant number, since it is smaller than the sum of its proper divisors (18797806860).

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

7620730740 is a wasteful number, since it uses less digits than its factorization.

7620730740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6048221 (or 6048216 counting only the distinct ones).

The product of its (nonzero) digits is 49392, while the sum is 36.

The square root of 7620730740 is about 87296.7968484526. The cubic root of 7620730740 is about 1967.8811802395.

The spelling of 7620730740 in words is "seven billion, six hundred twenty million, seven hundred thirty thousand, seven hundred forty".