16672386 has 16 divisors (see below), whose sum is σ = 35100000. Its totient is φ = 5264928.

The previous prime is 16672349. The next prime is 16672387. The reversal of 16672386 is 68327661.

It is not an unprimeable number, because it can be changed into a prime (16672387) by changing a digit.

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, 73011 + ... + 73238.

It is an arithmetic number, because the mean of its divisors is an integer number (2193750).

Almost surely, 2^16672386 is an apocalyptic number.

16672386 is an abundant number, since it is smaller than the sum of its proper divisors (18427614).

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

16672386 is a wasteful number, since it uses less digits than its factorization.

16672386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146273.

The product of its digits is 72576, while the sum is 39.

The square root of 16672386 is about 4083.1833169722. The cubic root of 16672386 is about 255.4656926501.

Adding to 16672386 its sum of digits (39), we get a triangular number (16672425 = T₅₇₇₄).

The spelling of 16672386 in words is "sixteen million, six hundred seventy-two thousand, three hundred eighty-six".