6988380 has 72 divisors (see below), whose sum is σ = 22771728. Its totient is φ = 1596672.

The previous prime is 6988379. The next prime is 6988417. The reversal of 6988380 is 838896.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1752 + ... + 4128.

It is an arithmetic number, because the mean of its divisors is an integer number (316274).

Almost surely, 2^6988380 is an apocalyptic number.

6988380 is a gapful number since it is divisible by the number (60) 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 6988380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11385864).

6988380 is an abundant number, since it is smaller than the sum of its proper divisors (15783348).

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

6988380 is a wasteful number, since it uses less digits than its factorization.

6988380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403 (or 2394 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 6988380 is about 2643.5544253902. The cubic root of 6988380 is about 191.1872107947.

The spelling of 6988380 in words is "six million, nine hundred eighty-eight thousand, three hundred eighty".