16248639 has 16 divisors (see below), whose sum is σ = 23990400. Its totient is φ = 9699360.

The previous prime is 16248623. The next prime is 16248643. The reversal of 16248639 is 93684261.

It is not a de Polignac number, because 16248639 - 2⁴ = 16248623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16248597 and 16248606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16248689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1464 + ... + 5885.

It is an arithmetic number, because the mean of its divisors is an integer number (1499400).

Almost surely, 2^16248639 is an apocalyptic number.

16248639 is a deficient number, since it is larger than the sum of its proper divisors (7741761).

16248639 is a wasteful number, since it uses less digits than its factorization.

16248639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7430.

The product of its digits is 62208, while the sum is 39.

The square root of 16248639 is about 4030.9600593407. The cubic root of 16248639 is about 253.2827794245.

The spelling of 16248639 in words is "sixteen million, two hundred forty-eight thousand, six hundred thirty-nine".