4006378188 has 72 divisors (see below), whose sum is σ = 10932012000. Its totient is φ = 1233340416.

The previous prime is 4006378169. The next prime is 4006378199. The reversal of 4006378188 is 8818736004.

4006378188 is a `hidden beast` number, since 4 + 0 + 0 + 637 + 8 + 1 + 8 + 8 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 59413 + ... + 107436.

It is an arithmetic number, because the mean of its divisors is an integer number (151833500).

Almost surely, 2^4006378188 is an apocalyptic number.

It is an amenable number.

4006378188 is an abundant number, since it is smaller than the sum of its proper divisors (6925633812).

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

4006378188 is a wasteful number, since it uses less digits than its factorization.

4006378188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166911 (or 166906 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 4006378188 is about 63295.9571220785. The cubic root of 4006378188 is about 1588.2443324385.

The spelling of 4006378188 in words is "four billion, six million, three hundred seventy-eight thousand, one hundred eighty-eight".