6228878401 has 4 divisors (see below), whose sum is σ = 6231207892. Its totient is φ = 6226548912.

The previous prime is 6228878389. The next prime is 6228878407. The reversal of 6228878401 is 1048788226.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1849086001 + 4379792400 = 43001^2 + 66180^2 .

It is a cyclic number.

It is not a de Polignac number, because 6228878401 - 2⁷ = 6228878273 is a prime.

It is a super-2 number, since 2×6228878401² = 77597852268888633602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6228878407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1160730 + ... + 1166083.

It is an arithmetic number, because the mean of its divisors is an integer number (1557801973).

Almost surely, 2^6228878401 is an apocalyptic number.

It is an amenable number.

6228878401 is a deficient number, since it is larger than the sum of its proper divisors (2329491).

6228878401 is a wasteful number, since it uses less digits than its factorization.

6228878401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329490.

The product of its (nonzero) digits is 344064, while the sum is 46.

The square root of 6228878401 is about 78923.2437308554. The cubic root of 6228878401 is about 1839.9384038336.

The spelling of 6228878401 in words is "six billion, two hundred twenty-eight million, eight hundred seventy-eight thousand, four hundred one".