16869240 has 96 divisors (see below), whose sum is σ = 56047680. Its totient is φ = 4398336.

The previous prime is 16869233. The next prime is 16869269. The reversal of 16869240 is 4296861.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 16869195 and 16869204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16422 + ... + 17418.

It is an arithmetic number, because the mean of its divisors is an integer number (583830).

Almost surely, 2^16869240 is an apocalyptic number.

16869240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16869240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28023840).

16869240 is an abundant number, since it is smaller than the sum of its proper divisors (39178440).

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

16869240 is a wasteful number, since it uses less digits than its factorization.

16869240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 16869240 is about 4107.2180365790. The cubic root of 16869240 is about 256.4672050909.

The spelling of 16869240 in words is "sixteen million, eight hundred sixty-nine thousand, two hundred forty".