4138625040 has 80 divisors (see below), whose sum is σ = 13996086336. Its totient is φ = 1003302400.

The previous prime is 4138625039. The next prime is 4138625077. The reversal of 4138625040 is 405268314.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 4138624992 and 4138625010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 781191 + ... + 786470.

Almost surely, 2^4138625040 is an apocalyptic number.

4138625040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4138625040 is an abundant number, since it is smaller than the sum of its proper divisors (9857461296).

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

4138625040 is a wasteful number, since it uses less digits than its factorization.

4138625040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567688 (or 1567682 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 4138625040 is about 64332.1462412067. The cubic root of 4138625040 is about 1605.5309934546.

The spelling of 4138625040 in words is "four billion, one hundred thirty-eight million, six hundred twenty-five thousand, forty".