3940720875 has 360 divisors, whose sum is σ = 9450986688. Its totient is φ = 1627516800.

The previous prime is 3940720811. The next prime is 3940720891. The reversal of 3940720875 is 5780270493.

3940720875 is a `hidden beast` number, since 39 + 407 + 208 + 7 + 5 = 666.

It is not a de Polignac number, because 3940720875 - 2⁶ = 3940720811 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 3940720875.

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 359 ways as a sum of consecutive naturals, for example, 83845102 + ... + 83845148.

Almost surely, 2^3940720875 is an apocalyptic number.

3940720875 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3940720875 is an abundant number, since it is smaller than the sum of its proper divisors (5510265813).

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

3940720875 is a wasteful number, since it uses less digits than its factorization.

3940720875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 3940720875 is about 62775.1612901154. The cubic root of 3940720875 is about 1579.5203472459.

The spelling of 3940720875 in words is "three billion, nine hundred forty million, seven hundred twenty thousand, eight hundred seventy-five".