7099939840 has 352 divisors, whose sum is σ = 21166700544. Its totient is φ = 2229534720.

The previous prime is 7099939811. The next prime is 7099939843. The reversal of 7099939840 is 489399907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7099939843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26198905 + ... + 26199175.

It is an arithmetic number, because the mean of its divisors is an integer number (60132672).

Almost surely, 2^7099939840 is an apocalyptic number.

7099939840 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 7099939840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10583350272).

7099939840 is an abundant number, since it is smaller than the sum of its proper divisors (14066760704).

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

7099939840 is a wasteful number, since it uses less digits than its factorization.

7099939840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 58.

The square root of 7099939840 is about 84261.1407470846. The cubic root of 7099939840 is about 1921.9919142448.

The spelling of 7099939840 in words is "seven billion, ninety-nine million, nine hundred thirty-nine thousand, eight hundred forty".