16004641 has 8 divisors (see below), whose sum is σ = 16317504. Its totient is φ = 15694800.

The previous prime is 16004621. The next prime is 16004647. The reversal of 16004641 is 14640061.

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

It is a cyclic number.

It is not a de Polignac number, because 16004641 - 2⁹ = 16004129 is a prime.

It is a super-2 number, since 2×16004641² = 512297067077762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16004647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11895 + ... + 13171.

It is an arithmetic number, because the mean of its divisors is an integer number (2039688).

Almost surely, 2^16004641 is an apocalyptic number.

It is an amenable number.

16004641 is a deficient number, since it is larger than the sum of its proper divisors (312863).

16004641 is a wasteful number, since it uses less digits than its factorization.

16004641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511.

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

The square root of 16004641 is about 4000.5800829380. The cubic root of 16004641 is about 252.0085713470.

It can be divided in two parts, 1600 and 4641, that added together give a square (6241 = 79²).

The spelling of 16004641 in words is "sixteen million, four thousand, six hundred forty-one".