3868428726 has 32 divisors (see below), whose sum is σ = 8892943200. Its totient is φ = 1245011040.

The previous prime is 3868428701. The next prime is 3868428743. The reversal of 3868428726 is 6278248683.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1233565 + ... + 1236696.

It is an arithmetic number, because the mean of its divisors is an integer number (277904475).

Almost surely, 2^3868428726 is an apocalyptic number.

3868428726 is an abundant number, since it is smaller than the sum of its proper divisors (5024514474).

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

3868428726 is a wasteful number, since it uses less digits than its factorization.

3868428726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2470301 (or 2470295 counting only the distinct ones).

The product of its digits is 6193152, while the sum is 54.

The square root of 3868428726 is about 62196.6938510400. The cubic root of 3868428726 is about 1569.8019583322.

The spelling of 3868428726 in words is "three billion, eight hundred sixty-eight million, four hundred twenty-eight thousand, seven hundred twenty-six".