4168401644 has 24 divisors (see below), whose sum is σ = 7982988048. Its totient is φ = 1888744640.

The previous prime is 4168401641. The next prime is 4168401647. The reversal of 4168401644 is 4461048614.

It is an interprime number because it is at equal distance from previous prime (4168401641) and next prime (4168401647).

It is a junction number, because it is equal to n+sod(n) for n = 4168401598 and 4168401607.

It is not an unprimeable number, because it can be changed into a prime (4168401641) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 135479 + ... + 163374.

It is an arithmetic number, because the mean of its divisors is an integer number (332624502).

Almost surely, 2^4168401644 is an apocalyptic number.

4168401644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4168401644 is a deficient number, since it is larger than the sum of its proper divisors (3814586404).

4168401644 is a wasteful number, since it uses less digits than its factorization.

4168401644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299185 (or 299183 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 38.

The square root of 4168401644 is about 64563.1601147280. The cubic root of 4168401644 is about 1609.3722903094.

The spelling of 4168401644 in words is "four billion, one hundred sixty-eight million, four hundred one thousand, six hundred forty-four".