16004461 has 8 divisors (see below), whose sum is σ = 17931744. Its totient is φ = 14155920.

The previous prime is 16004459. The next prime is 16004489. The reversal of 16004461 is 16440061.

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 16004461 - 2¹ = 16004459 is a prime.

It is a super-2 number, since 2×16004461² = 512285543801042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16004411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19255 + ... + 20068.

It is an arithmetic number, because the mean of its divisors is an integer number (2241468).

Almost surely, 2^16004461 is an apocalyptic number.

16004461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16004461 is a deficient number, since it is larger than the sum of its proper divisors (1927283).

16004461 is a wasteful number, since it uses less digits than its factorization.

16004461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39371.

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

The square root of 16004461 is about 4000.5575861372. The cubic root of 16004461 is about 252.0076265853.

Subtracting 16004461 from its reverse (16440061), we obtain a square (435600 = 660²).

The spelling of 16004461 in words is "sixteen million, four thousand, four hundred sixty-one".