16034391 has 12 divisors (see below), whose sum is σ = 23400832. Its totient is φ = 10578816.

The previous prime is 16034387. The next prime is 16034407. The reversal of 16034391 is 19343061.

It is not a de Polignac number, because 16034391 - 2² = 16034387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16034591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8311 + ... + 10056.

Almost surely, 2^16034391 is an apocalyptic number.

16034391 is a deficient number, since it is larger than the sum of its proper divisors (7366441).

16034391 is a wasteful number, since it uses less digits than its factorization.

16034391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18470 (or 18467 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 16034391 is about 4004.2965674385. The cubic root of 16034391 is about 252.1646222158.

The spelling of 16034391 in words is "sixteen million, thirty-four thousand, three hundred ninety-one".