16923340 has 48 divisors (see below), whose sum is σ = 41025600. Its totient is φ = 5743872.

The previous prime is 16923323. The next prime is 16923341. The reversal of 16923340 is 4332961.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 16923299 and 16923308.

It is not an unprimeable number, because it can be changed into a prime (16923341) 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, 14706 + ... + 15814.

It is an arithmetic number, because the mean of its divisors is an integer number (854700).

Almost surely, 2^16923340 is an apocalyptic number.

16923340 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 16923340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20512800).

16923340 is an abundant number, since it is smaller than the sum of its proper divisors (24102260).

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

16923340 is a wasteful number, since it uses less digits than its factorization.

16923340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1234 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 16923340 is about 4113.7987311000. The cubic root of 16923340 is about 256.7410777299.

The spelling of 16923340 in words is "sixteen million, nine hundred twenty-three thousand, three hundred forty".