4320978 has 16 divisors (see below), whose sum is σ = 8722560. Its totient is φ = 1426896.

The previous prime is 4320959. The next prime is 4321003. The reversal of 4320978 is 8790234.

4320978 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2650 + ... + 3957.

It is an arithmetic number, because the mean of its divisors is an integer number (545160).

Almost surely, 2^4320978 is an apocalyptic number.

4320978 is an abundant number, since it is smaller than the sum of its proper divisors (4401582).

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

4320978 is a wasteful number, since it uses less digits than its factorization.

4320978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6721.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 4320978 is about 2078.6962260032. The cubic root of 4320978 is about 162.8773463481.

The spelling of 4320978 in words is "four million, three hundred twenty thousand, nine hundred seventy-eight".