16420546 has 8 divisors (see below), whose sum is σ = 24811020. Its totient is φ = 8150208.

The previous prime is 16420543. The next prime is 16420553. The reversal of 16420546 is 64502461.

It can be written as a sum of positive squares in 2 ways, for example, as 15689521 + 731025 = 3961^2 + 855^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16420543) 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 3 ways as a sum of consecutive naturals, for example, 29691 + ... + 30238.

Almost surely, 2^16420546 is an apocalyptic number.

16420546 is a deficient number, since it is larger than the sum of its proper divisors (8390474).

16420546 is a wasteful number, since it uses less digits than its factorization.

16420546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60068.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 16420546 is about 4052.2272887882. The cubic root of 16420546 is about 254.1728729949.

The spelling of 16420546 in words is "sixteen million, four hundred twenty thousand, five hundred forty-six".