4199978 has 8 divisors (see below), whose sum is σ = 6317568. Its totient is φ = 2094124.

The previous prime is 4199977. The next prime is 4199989. The reversal of 4199978 is 8799914.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (4199971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976 + ... + 3507.

It is an arithmetic number, because the mean of its divisors is an integer number (789696).

Almost surely, 2^4199978 is an apocalyptic number.

4199978 is a deficient number, since it is larger than the sum of its proper divisors (2117590).

4199978 is a wasteful number, since it uses less digits than its factorization.

4199978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868.

The product of its digits is 163296, while the sum is 47.

The square root of 4199978 is about 2049.3847857345. The cubic root of 4199978 is about 161.3425828922.

The spelling of 4199978 in words is "four million, one hundred ninety-nine thousand, nine hundred seventy-eight".