4001541786 has 48 divisors (see below), whose sum is σ = 9713834208. Its totient is φ = 1179813600.

The previous prime is 4001541769. The next prime is 4001541799. The reversal of 4001541786 is 6871451004.

It is a happy number.

4001541786 is a `hidden beast` number, since 40 + 0 + 1 + 541 + 78 + 6 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 4001541786.

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 23 ways as a sum of consecutive naturals, for example, 265780 + ... + 280431.

It is an arithmetic number, because the mean of its divisors is an integer number (202371546).

Almost surely, 2^4001541786 is an apocalyptic number.

4001541786 is an abundant number, since it is smaller than the sum of its proper divisors (5712292422).

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

4001541786 is a wasteful number, since it uses less digits than its factorization.

4001541786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546267 (or 546264 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 4001541786 is about 63257.7409176142. The cubic root of 4001541786 is about 1587.6049784960.

The spelling of 4001541786 in words is "four billion, one million, five hundred forty-one thousand, seven hundred eighty-six".