7109893440 has 168 divisors, whose sum is σ = 26336368968. Its totient is φ = 1750118400.

The previous prime is 7109893433. The next prime is 7109893447. The reversal of 7109893440 is 443989017.

It is an interprime number because it is at equal distance from previous prime (7109893433) and next prime (7109893447).

It can be written as a sum of positive squares in 4 ways, for example, as 1398161664 + 5711731776 = 37392^2 + 75576^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7109893447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57511 + ... + 132390.

It is an arithmetic number, because the mean of its divisors is an integer number (156764101).

Almost surely, 2^7109893440 is an apocalyptic number.

It is an amenable number.

7109893440 is an abundant number, since it is smaller than the sum of its proper divisors (19226475528).

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

7109893440 is a wasteful number, since it uses less digits than its factorization.

7109893440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189937 (or 189924 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 7109893440 is about 84320.1840605202. The cubic root of 7109893440 is about 1922.8896592086.

The spelling of 7109893440 in words is "seven billion, one hundred nine million, eight hundred ninety-three thousand, four hundred forty".