16442524 has 48 divisors (see below), whose sum is σ = 35768320. Its totient is φ = 6454080.

The previous prime is 16442521. The next prime is 16442609. The reversal of 16442524 is 42524461.

It is a super-3 number, since 3×16442524³ (a number of 23 digits) contains 333 as substring.

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 = 16442492 and 16442501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442521) 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, 15994 + ... + 16990.

Almost surely, 2^16442524 is an apocalyptic number.

16442524 is a gapful number since it is divisible by the number (14) 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 16442524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17884160).

16442524 is an abundant number, since it is smaller than the sum of its proper divisors (19325796).

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

16442524 is a wasteful number, since it uses less digits than its factorization.

16442524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058 (or 1056 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 16442524 is about 4054.9382239437. The cubic root of 16442524 is about 254.2862212553.

Adding to 16442524 its reverse (42524461), we get a palindrome (58966985).

The spelling of 16442524 in words is "sixteen million, four hundred forty-two thousand, five hundred twenty-four".