16422504 has 64 divisors (see below), whose sum is σ = 47654400. Its totient is φ = 4618944.

The previous prime is 16422503. The next prime is 16422521. The reversal of 16422504 is 40522461.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16422503) 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, 10527 + ... + 11985.

It is an arithmetic number, because the mean of its divisors is an integer number (744600).

Almost surely, 2^16422504 is an apocalyptic number.

16422504 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 16422504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23827200).

16422504 is an abundant number, since it is smaller than the sum of its proper divisors (31231896).

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

16422504 is a wasteful number, since it uses less digits than its factorization.

16422504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1542 (or 1538 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 16422504 is about 4052.4688771168. The cubic root of 16422504 is about 254.1829751905.

Adding to 16422504 its reverse (40522461), we get a palindrome (56944965).

The spelling of 16422504 in words is "sixteen million, four hundred twenty-two thousand, five hundred four".