16009407 has 10 divisors (see below), whose sum is σ = 23915408. Its totient is φ = 10672884.

The previous prime is 16009397. The next prime is 16009471. The reversal of 16009407 is 70490061.

It is not a de Polignac number, because 16009407 - 2⁴ = 16009391 is a prime.

It is a super-2 number, since 2×16009407² = 512602224983298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16009307) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 98743 + ... + 98904.

Almost surely, 2^16009407 is an apocalyptic number.

16009407 is a deficient number, since it is larger than the sum of its proper divisors (7906001).

16009407 is an equidigital number, since it uses as much as digits as its factorization.

16009407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197659 (or 197650 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 16009407 is about 4001.1757022155. The cubic root of 16009407 is about 252.0335839595.

Adding to 16009407 its reverse (70490061), we get a palindrome (86499468).

The spelling of 16009407 in words is "sixteen million, nine thousand, four hundred seven".