16868472 has 16 divisors (see below), whose sum is σ = 42171240. Its totient is φ = 5622816.

The previous prime is 16868461. The next prime is 16868473. The reversal of 16868472 is 27486861.

It is a super-2 number, since 2×16868472² = 569090695229568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16868473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 351403 + ... + 351450.

Almost surely, 2^16868472 is an apocalyptic number.

16868472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16868472 is an abundant number, since it is smaller than the sum of its proper divisors (25302768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16868472 is a wasteful number, since it uses less digits than its factorization.

16868472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702862 (or 702858 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 16868472 is about 4107.1245415741. The cubic root of 16868472 is about 256.4633130009.

The spelling of 16868472 in words is "sixteen million, eight hundred sixty-eight thousand, four hundred seventy-two".