16284940 has 48 divisors (see below), whose sum is σ = 39316032. Its totient is φ = 5550336.

The previous prime is 16284911. The next prime is 16284941. The reversal of 16284940 is 4948261.

16284940 = T₆₄ + T₆₅ + ... + T₄₆₀.

It is a super-3 number, since 3×16284940³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16284896 and 16284905.

It is not an unprimeable number, because it can be changed into a prime (16284941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40822 + ... + 41218.

It is an arithmetic number, because the mean of its divisors is an integer number (819084).

Almost surely, 2^16284940 is an apocalyptic number.

16284940 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 16284940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19658016).

16284940 is an abundant number, since it is smaller than the sum of its proper divisors (23031092).

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

16284940 is a wasteful number, since it uses less digits than its factorization.

16284940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 16284940 is about 4035.4603207069. The cubic root of 16284940 is about 253.4712583816.

The spelling of 16284940 in words is "sixteen million, two hundred eighty-four thousand, nine hundred forty".