4391458 has 4 divisors (see below), whose sum is σ = 6587190. Its totient is φ = 2195728.

The previous prime is 4391449. The next prime is 4391483. The reversal of 4391458 is 8541934.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2411809 + 1979649 = 1553^2 + 1407^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097863 + ... + 1097866.

Almost surely, 2^4391458 is an apocalyptic number.

4391458 is a deficient number, since it is larger than the sum of its proper divisors (2195732).

4391458 is a wasteful number, since it uses less digits than its factorization.

4391458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2195731.

The product of its digits is 17280, while the sum is 34.

The square root of 4391458 is about 2095.5805878085. The cubic root of 4391458 is about 163.7581453905.

The spelling of 4391458 in words is "four million, three hundred ninety-one thousand, four hundred fifty-eight".