7875433440 has 576 divisors, whose sum is σ = 32670812160. Its totient is φ = 1735603200.

The previous prime is 7875433439. The next prime is 7875433499. The reversal of 7875433440 is 443345787.

7875433440 is a `hidden beast` number, since 78 + 7 + 543 + 34 + 4 + 0 = 666.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29060505 + ... + 29060775.

It is an arithmetic number, because the mean of its divisors is an integer number (56720160).

Almost surely, 2^7875433440 is an apocalyptic number.

7875433440 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 7875433440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16335406080).

7875433440 is an abundant number, since it is smaller than the sum of its proper divisors (24795378720).

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

7875433440 is a wasteful number, since it uses less digits than its factorization.

7875433440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 45.

The square root of 7875433440 is about 88743.6388706255. The cubic root of 7875433440 is about 1989.5651044967.

The spelling of 7875433440 in words is "seven billion, eight hundred seventy-five million, four hundred thirty-three thousand, four hundred forty".