16420146 has 8 divisors (see below), whose sum is σ = 32840304. Its totient is φ = 5473380.

The previous prime is 16420133. The next prime is 16420153. The reversal of 16420146 is 64102461.

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

16420146 is an admirable number.

It is a super-2 number, since 2×16420146² = 539242389322632, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1368340 + ... + 1368351.

It is an arithmetic number, because the mean of its divisors is an integer number (4105038).

Almost surely, 2^16420146 is an apocalyptic number.

16420146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16420146 is a wasteful number, since it uses less digits than its factorization.

16420146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736696.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 16420146 is about 4052.1779329146. The cubic root of 16420146 is about 254.1708091176.

The spelling of 16420146 in words is "sixteen million, four hundred twenty thousand, one hundred forty-six".