16248681 has 28 divisors (see below), whose sum is σ = 25182720. Its totient is φ = 10468440.

The previous prime is 16248653. The next prime is 16248689. The reversal of 16248681 is 18684261.

It is not a de Polignac number, because 16248681 - 2¹⁰ = 16247657 is a prime.

It is a super-2 number, since 2×16248681² = 528039268479522, which contains 22 as substring.

Its product of digits (18432) is a multiple of the sum of its prime factors (768).

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 27 ways as a sum of consecutive naturals, for example, 22240 + ... + 22958.

Almost surely, 2^16248681 is an apocalyptic number.

It is an amenable number.

16248681 is a deficient number, since it is larger than the sum of its proper divisors (8934039).

16248681 is an frugal number, since it uses more digits than its factorization.

16248681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768 (or 753 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 16248681 is about 4030.9652690144. The cubic root of 16248681 is about 253.2829976555.

The spelling of 16248681 in words is "sixteen million, two hundred forty-eight thousand, six hundred eighty-one".