16004080 has 40 divisors (see below), whose sum is σ = 39171600. Its totient is φ = 6064128.

The previous prime is 16004059. The next prime is 16004101. The reversal of 16004080 is 8040061.

It is an interprime number because it is at equal distance from previous prime (16004059) and next prime (16004101).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×16004080² = 512261153292800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3745 + ... + 6784.

It is an arithmetic number, because the mean of its divisors is an integer number (979290).

Almost surely, 2^16004080 is an apocalyptic number.

16004080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16004080 is an abundant number, since it is smaller than the sum of its proper divisors (23167520).

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

16004080 is a wasteful number, since it uses less digits than its factorization.

16004080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561 (or 10555 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 16004080 is about 4000.5099674916. The cubic root of 16004080 is about 252.0056268165.

The spelling of 16004080 in words is "sixteen million, four thousand, eighty".