6985145240 has 64 divisors (see below), whose sum is σ = 16022016000. Its totient is φ = 2740233600.

The previous prime is 6985145227. The next prime is 6985145243. The reversal of 6985145240 is 425415896.

It is a junction number, because it is equal to n+sod(n) for n = 6985145191 and 6985145200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6985145243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469841 + ... + 484479.

It is an arithmetic number, because the mean of its divisors is an integer number (250344000).

Almost surely, 2^6985145240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6985145240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8011008000).

6985145240 is an abundant number, since it is smaller than the sum of its proper divisors (9036870760).

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

6985145240 is a wasteful number, since it uses less digits than its factorization.

6985145240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14880 (or 14876 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 6985145240 is about 83577.1813355775. The cubic root of 6985145240 is about 1911.5770752460.

The spelling of 6985145240 in words is "six billion, nine hundred eighty-five million, one hundred forty-five thousand, two hundred forty".