16432945 has 8 divisors (see below), whose sum is σ = 20355840. Its totient is φ = 12722160.

The previous prime is 16432943. The next prime is 16432979. The reversal of 16432945 is 54923461.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16432945 - 2¹ = 16432943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16432945.

It is not an unprimeable number, because it can be changed into a prime (16432943) 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, 52855 + ... + 53164.

It is an arithmetic number, because the mean of its divisors is an integer number (2544480).

Almost surely, 2^16432945 is an apocalyptic number.

It is an amenable number.

16432945 is a deficient number, since it is larger than the sum of its proper divisors (3922895).

16432945 is a wasteful number, since it uses less digits than its factorization.

16432945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106055.

The product of its digits is 25920, while the sum is 34.

The square root of 16432945 is about 4053.7568994699. The cubic root of 16432945 is about 254.2368314155.

The spelling of 16432945 in words is "sixteen million, four hundred thirty-two thousand, nine hundred forty-five".