16284642 has 32 divisors (see below), whose sum is σ = 35809344. Its totient is φ = 4896000.

The previous prime is 16284601. The next prime is 16284673. The reversal of 16284642 is 24648261.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8142 + ... + 9942.

It is an arithmetic number, because the mean of its divisors is an integer number (1119042).

Almost surely, 2^16284642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16284642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17904672).

16284642 is an abundant number, since it is smaller than the sum of its proper divisors (19524702).

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

16284642 is a wasteful number, since it uses less digits than its factorization.

16284642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954.

The product of its digits is 18432, while the sum is 33.

The square root of 16284642 is about 4035.4233978605. The cubic root of 16284642 is about 253.4697122722.

The spelling of 16284642 in words is "sixteen million, two hundred eighty-four thousand, six hundred forty-two".