4391398 has 32 divisors (see below), whose sum is σ = 7630848. Its totient is φ = 1876800.

The previous prime is 4391393. The next prime is 4391399. The reversal of 4391398 is 8931934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4391393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31986 + ... + 32122.

It is an arithmetic number, because the mean of its divisors is an integer number (238464).

Almost surely, 2^4391398 is an apocalyptic number.

4391398 is a deficient number, since it is larger than the sum of its proper divisors (3239450).

4391398 is a wasteful number, since it uses less digits than its factorization.

4391398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228.

The product of its digits is 23328, while the sum is 37.

The square root of 4391398 is about 2095.5662719179. The cubic root of 4391398 is about 163.7573995840.

The spelling of 4391398 in words is "four million, three hundred ninety-one thousand, three hundred ninety-eight".