4011557838 has 8 divisors (see below), whose sum is σ = 8023115688. Its totient is φ = 1337185944.

The previous prime is 4011557833. The next prime is 4011557839. The reversal of 4011557838 is 8387551104.

It is a sphenic number, since it is the product of 3 distinct primes.

4011557838 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 4011557838.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011557833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334296481 + ... + 334296492.

It is an arithmetic number, because the mean of its divisors is an integer number (1002889461).

Almost surely, 2^4011557838 is an apocalyptic number.

4011557838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4011557838 is a wasteful number, since it uses less digits than its factorization.

4011557838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668592978.

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 4011557838 is about 63336.8600263701. The cubic root of 4011557838 is about 1588.9284921026.

The spelling of 4011557838 in words is "four billion, eleven million, five hundred fifty-seven thousand, eight hundred thirty-eight".