6988910040 has 160 divisors (see below), whose sum is σ = 26846376480. Its totient is φ = 1597459968.

The previous prime is 6988910021. The next prime is 6988910051. The reversal of 6988910040 is 400198896.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 131397 + ... + 176756.

It is an arithmetic number, because the mean of its divisors is an integer number (167789853).

Almost surely, 2^6988910040 is an apocalyptic number.

6988910040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6988910040 is an abundant number, since it is smaller than the sum of its proper divisors (19857466440).

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

6988910040 is a wasteful number, since it uses less digits than its factorization.

6988910040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308183 (or 308170 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 6988910040 is about 83599.7011956383. The cubic root of 6988910040 is about 1911.9204426144.

The spelling of 6988910040 in words is "six billion, nine hundred eighty-eight million, nine hundred ten thousand, forty".