7380660840 has 512 divisors, whose sum is σ = 28091059200. Its totient is φ = 1512898560.

The previous prime is 7380660821. The next prime is 7380660887. The reversal of 7380660840 is 480660837.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 7380660792 and 7380660801.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 32229846 + ... + 32230074.

It is an arithmetic number, because the mean of its divisors is an integer number (54865350).

Almost surely, 2^7380660840 is an apocalyptic number.

7380660840 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 7380660840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14045529600).

7380660840 is an abundant number, since it is smaller than the sum of its proper divisors (20710398360).

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

7380660840 is a wasteful number, since it uses less digits than its factorization.

7380660840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The square root of 7380660840 is about 85910.7725491978. The cubic root of 7380660840 is about 1946.9961061004.

The spelling of 7380660840 in words is "seven billion, three hundred eighty million, six hundred sixty thousand, eight hundred forty".