4391312 has 10 divisors (see below), whose sum is σ = 8508198. Its totient is φ = 2195648.

The previous prime is 4391263. The next prime is 4391323. The reversal of 4391312 is 2131934.

It can be written as a sum of positive squares in only one way, i.e., 4145296 + 246016 = 2036^2 + 496^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137213 + ... + 137244.

Almost surely, 2^4391312 is an apocalyptic number.

It is an amenable number.

4391312 is a deficient number, since it is larger than the sum of its proper divisors (4116886).

4391312 is a wasteful number, since it uses less digits than its factorization.

4391312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274465 (or 274459 counting only the distinct ones).

The product of its digits is 648, while the sum is 23.

The square root of 4391312 is about 2095.5457523042. The cubic root of 4391312 is about 163.7563305829.

The spelling of 4391312 in words is "four million, three hundred ninety-one thousand, three hundred twelve".