16420024 has 8 divisors (see below), whose sum is σ = 30787560. Its totient is φ = 8210008.

The previous prime is 16420007. The next prime is 16420031. The reversal of 16420024 is 42002461.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 16419983 and 16420010.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1026244 + ... + 1026259.

It is an arithmetic number, because the mean of its divisors is an integer number (3848445).

Almost surely, 2^16420024 is an apocalyptic number.

It is an amenable number.

16420024 is a deficient number, since it is larger than the sum of its proper divisors (14367536).

16420024 is a wasteful number, since it uses less digits than its factorization.

16420024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052509 (or 2052505 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 16420024 is about 4052.1628792535. The cubic root of 16420024 is about 254.1701796284.

Adding to 16420024 its reverse (42002461), we get a palindrome (58422485).

The spelling of 16420024 in words is "sixteen million, four hundred twenty thousand, twenty-four".