16671434 has 16 divisors (see below), whose sum is σ = 26998272. Its totient is φ = 7675248.

The previous prime is 16671427. The next prime is 16671437. The reversal of 16671434 is 43417661.

It is a self number, because there is not a number n which added to its sum of digits gives 16671434.

It is not an unprimeable number, because it can be changed into a prime (16671437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18887 + ... + 19749.

It is an arithmetic number, because the mean of its divisors is an integer number (1687392).

Almost surely, 2^16671434 is an apocalyptic number.

16671434 is a deficient number, since it is larger than the sum of its proper divisors (10326838).

16671434 is a wasteful number, since it uses less digits than its factorization.

16671434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621.

The product of its digits is 12096, while the sum is 32.

The square root of 16671434 is about 4083.0667395966. The cubic root of 16671434 is about 255.4608301594.

The spelling of 16671434 in words is "sixteen million, six hundred seventy-one thousand, four hundred thirty-four".