16626239 has 8 divisors (see below), whose sum is σ = 19389600. Its totient is φ = 14250768.

The previous prime is 16626229. The next prime is 16626241. The reversal of 16626239 is 93262661.

It is not a de Polignac number, because 16626239 - 2⁴ = 16626223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16626199 and 16626208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16626229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23894 + ... + 24579.

It is an arithmetic number, because the mean of its divisors is an integer number (2423700).

Almost surely, 2^16626239 is an apocalyptic number.

16626239 is a deficient number, since it is larger than the sum of its proper divisors (2763361).

16626239 is an frugal number, since it uses more digits than its factorization.

16626239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48494 (or 48480 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 16626239 is about 4077.5285406726. The cubic root of 16626239 is about 255.2297762300.

The spelling of 16626239 in words is "sixteen million, six hundred twenty-six thousand, two hundred thirty-nine".