4349978 has 8 divisors (see below), whose sum is σ = 6586272. Its totient is φ = 2154556.

The previous prime is 4349959. The next prime is 4349987. The reversal of 4349978 is 8799434.

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

It is an unprimeable number.

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, 9950 + ... + 10377.

It is an arithmetic number, because the mean of its divisors is an integer number (823284).

Almost surely, 2^4349978 is an apocalyptic number.

4349978 is a deficient number, since it is larger than the sum of its proper divisors (2236294).

4349978 is a wasteful number, since it uses less digits than its factorization.

4349978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20436.

The product of its digits is 217728, while the sum is 44.

The square root of 4349978 is about 2085.6600873584. The cubic root of 4349978 is about 163.2409149066.

The spelling of 4349978 in words is "four million, three hundred forty-nine thousand, nine hundred seventy-eight".