16450420 has 24 divisors (see below), whose sum is σ = 39481344. Its totient is φ = 5640096.

The previous prime is 16450417. The next prime is 16450433. The reversal of 16450420 is 2405461.

It is a junction number, because it is equal to n+sod(n) for n = 16450391 and 16450400.

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 in 7 ways as a sum of consecutive naturals, for example, 58612 + ... + 58891.

It is an arithmetic number, because the mean of its divisors is an integer number (1645056).

Almost surely, 2^16450420 is an apocalyptic number.

16450420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16450420 is an abundant number, since it is smaller than the sum of its proper divisors (23030924).

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

16450420 is a wasteful number, since it uses less digits than its factorization.

16450420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117519 (or 117517 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 16450420 is about 4055.9117347398. The cubic root of 16450420 is about 254.3269190356.

Adding to 16450420 its reverse (2405461), we get a palindrome (18855881).

The spelling of 16450420 in words is "sixteen million, four hundred fifty thousand, four hundred twenty".