16004745 has 24 divisors (see below), whose sum is σ = 29203200. Its totient is φ = 8086176.

The previous prime is 16004743. The next prime is 16004761. The reversal of 16004745 is 54740061.

16004745 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16004745 - 2¹ = 16004743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16004741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8505 + ... + 10214.

It is an arithmetic number, because the mean of its divisors is an integer number (1216800).

Almost surely, 2^16004745 is an apocalyptic number.

16004745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16004745 is a deficient number, since it is larger than the sum of its proper divisors (13198455).

16004745 is a wasteful number, since it uses less digits than its factorization.

16004745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18749 (or 18746 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 16004745 is about 4000.5930810319. The cubic root of 16004745 is about 252.0091172060.

The spelling of 16004745 in words is "sixteen million, four thousand, seven hundred forty-five".