16040039 has 8 divisors (see below), whose sum is σ = 16834272. Its totient is φ = 15253920.

The previous prime is 16039963. The next prime is 16040053. The reversal of 16040039 is 93004061.

16040039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16040039 is a prime.

It is a super-2 number, since 2×16040039² = 514565702243042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16039996 and 16040023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16040069) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2237 + ... + 6089.

It is an arithmetic number, because the mean of its divisors is an integer number (2104284).

Almost surely, 2^16040039 is an apocalyptic number.

16040039 is a deficient number, since it is larger than the sum of its proper divisors (794233).

16040039 is a wasteful number, since it uses less digits than its factorization.

16040039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4057.

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

The square root of 16040039 is about 4005.0017478148. The cubic root of 16040039 is about 252.1942264707.

The spelling of 16040039 in words is "sixteen million, forty thousand, thirty-nine".