16242642 has 48 divisors (see below), whose sum is σ = 38846808. Its totient is φ = 4872960.

The previous prime is 16242619. The next prime is 16242649. The reversal of 16242642 is 24624261.

16242642 is a `hidden beast` number, since 16 + 2 + 4 + 2 + 642 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 5803281 + 10439361 = 2409^2 + 3231^2 .

It is not an unprimeable number, because it can be changed into a prime (16242649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8748 + ... + 10440.

Almost surely, 2^16242642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16242642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19423404).

16242642 is an abundant number, since it is smaller than the sum of its proper divisors (22604166).

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

16242642 is a wasteful number, since it uses less digits than its factorization.

16242642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755 (or 1752 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 16242642 is about 4030.2161232371. The cubic root of 16242642 is about 253.2516153019.

The spelling of 16242642 in words is "sixteen million, two hundred forty-two thousand, six hundred forty-two".