16040146 has 8 divisors (see below), whose sum is σ = 25475580. Its totient is φ = 7548288.

The previous prime is 16040111. The next prime is 16040159. The reversal of 16040146 is 64104061.

It can be written as a sum of positive squares in 2 ways, for example, as 16040025 + 121 = 4005^2 + 11^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235851 + ... + 235918.

Almost surely, 2^16040146 is an apocalyptic number.

16040146 is a deficient number, since it is larger than the sum of its proper divisors (9435434).

16040146 is a wasteful number, since it uses less digits than its factorization.

16040146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471788.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 16040146 is about 4005.0151060889. The cubic root of 16040146 is about 252.1947872491.

The spelling of 16040146 in words is "sixteen million, forty thousand, one hundred forty-six".