6998040 has 96 divisors (see below), whose sum is σ = 26002080. Its totient is φ = 1598976.

The previous prime is 6998039. The next prime is 6998051. The reversal of 6998040 is 408996.

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 = 6997986 and 6998004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1132 + ... + 3908.

It is an arithmetic number, because the mean of its divisors is an integer number (270855).

Almost surely, 2^6998040 is an apocalyptic number.

6998040 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 6998040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13001040).

6998040 is an abundant number, since it is smaller than the sum of its proper divisors (19004040).

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

6998040 is a wasteful number, since it uses less digits than its factorization.

6998040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801 (or 2794 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 6998040 is about 2645.3808799490. The cubic root of 6998040 is about 191.2752625862.

The spelling of 6998040 in words is "six million, nine hundred ninety-eight thousand, forty".