16406073 has 12 divisors (see below), whose sum is σ = 23732800. Its totient is φ = 10921176.

The previous prime is 16406057. The next prime is 16406081. The reversal of 16406073 is 37060461.

16406073 is a `hidden beast` number, since 16 + 40 + 607 + 3 = 666.

It is not a de Polignac number, because 16406073 - 2⁴ = 16406057 is a prime.

It is a super-3 number, since 3×16406073³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16406023) 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, 11028 + ... + 12426.

Almost surely, 2^16406073 is an apocalyptic number.

It is an amenable number.

16406073 is a deficient number, since it is larger than the sum of its proper divisors (7326727).

16406073 is a wasteful number, since it uses less digits than its factorization.

16406073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2705 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 16406073 is about 4050.4410870916. The cubic root of 16406073 is about 254.0981754117.

The spelling of 16406073 in words is "sixteen million, four hundred six thousand, seventy-three".