16500044 has 36 divisors (see below), whose sum is σ = 32242392. Its totient is φ = 7381440.

The previous prime is 16500031. The next prime is 16500049. The reversal of 16500044 is 44000561.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16499989 and 16500025.

It is not an unprimeable number, because it can be changed into a prime (16500049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35099 + ... + 35565.

It is an arithmetic number, because the mean of its divisors is an integer number (895622).

Almost surely, 2^16500044 is an apocalyptic number.

It is an amenable number.

16500044 is a deficient number, since it is larger than the sum of its proper divisors (15742348).

16500044 is a wasteful number, since it uses less digits than its factorization.

16500044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 16500044 is about 4062.0246183400. The cubic root of 16500044 is about 254.5823947780.

The spelling of 16500044 in words is "sixteen million, five hundred thousand, forty-four".